In recent years, technological innovations that blur the line between practicality and absurdity have increasingly captured public attention. One such invention is the “self-cleaning” toilet, which received international recognition for its unconventional approach to sanitation. Scientists ____________ on the project for nearly a decade, motivated by the urgent need to improve hygiene standards in densely populated urban areas., had been working, will have been working, have been worked, have worked being, The toilet incorporates a sophisticated cleaning mechanism that ____________ immediately after each use, eliminating harmful bacteria without requiring manual effort. While the design appears revolutionary, critics have questioned its long-term viability, citing concerns over maintenance costs and system reliability., activates, is being activated, is activated, has activated, Several experts argue that the invention’s greatest weakness lies in its ____________, as reports of technical failures have surfaced during large-scale trials. Moreover, the high production cost has significantly limited its adoption in low-income regions., efficiency, efficient, effectively, effectiveness, ______ ______ these shortcomings, the invention has been widely praised for challenging conventional thinking and prompting renewed discussion about public sanitation., Because of, In spite of, Owing to, In addition to, Ultimately, the self-cleaning toilet serves as a compelling illustration of ______ ______ unconventional ideas can reshape societal norms., how creativity and technology can converge to produce change, how can creativity and technology converge to produce change, how creativity and technology could be converged to produce change, how can creativity and technology be converged to produce change, The increase in obesity began nearly half a century ago with a rise in calories consumed daily and a decline in meals_______at home., preparing and eating, to prepare and eat, which prepare and eat, prepared and eaten, to prepare for eating, According to the Department of Agriculture, in 1970 the food supply provided 2,086 calories per person per day, on average. By 2010, this amount _________to 2,534 calories, an increase of more than 20 percent., was rising, was risen, had risen, has risen, has been rising, ________each day could add nearly 50 pounds to the average adult in a year., 448 calories extra consumption, Consuming an extra 448 calories, An extra consuming of 448 calories, A consumption extra of 448 calories, Extra calories of 448 to consume, Sugar, it turns out, is a minor player _________ the rise. More than half of the added calories — 242 a day — have come from fats and oils, and another 167 calories from flour and cereal., on, at, for, to, of, Sugar accounts for only 35 of _______, the calories daily added, the added daily calories, the added calories daily, daily added the calories, added the calories daily, Relationships that are solid______ can stand the test of time. , ones that, to be the ones that, is the one’s that, are the ones that, being ones that, A good relationship is about_________ and a mutual spirit to root for the others. So do just that, for him and for your own future., friends, honest, compatibility, friendly, honestly, compatibly, friendship, honesty, compatibility, friendly, honest, compatible, friendliness, honest, compatibly, The perfect match is someone who makes you happy, someone who makes you smile, makes everything seem better, comfortable and blissful. And while in your case it may seem ______ you’ve found it (and you may have),, as if, when, what, as, don’t be hasty in _______as a consequence; , what you do, that you do, how should do, where to do, which to do, if the two of you are best for _________ then you’ll know it in the long run. Time apart won’t hinder much. In fact, time apart would bring you to better realization., both, others, each other, one another, According to Greek mythology, Atlas was a Titan of enormous strength. After _____the god Zeus, Atlas was forced to carry the earth and the sky for an eternity. , 1. defeating, 2. being defeated by, 3. be defeated, 4. being defeating, 5. has been defeated, In depictions of Atlas, he is shown as a stooped figure carrying the globe on his shoulders. ______ his association with the globe, maps began to be decorated with this image of Atlas., 1. Whereas, 2. However, 3. Because, 4. Because of, 5. in spite of, ________, the word “atlas” became a nickname for a collection of maps. Today, an atlas refers to any book that consists of a bound collection of maps., 1. According to, 2. At least, 3. Fortunately, 4. In addition, 5. Otherwise, For example, an atlas________ maps of the countries of the world or of the states of the United States. , 1. may make up for, 2. can be made up of, 3. must be making up, 4. should make up of, 5. making up of, Sometimes an atlas________ graphs and charts with other statistical information about the culture, religion, climate, or government of the population of a given area., 1. will always have, 2. is probably from, 3. will also contain, 4. is contained, 5. will surely be, I am writing to enquire about your language courses______ your website last week. , 1. which advertisement I saw on, 2. which I saw advertised on, 3. on which I saw advertisement, 4. as advertised I saw on, 5. advertised I saw on, I have been studying English for many years at a public high school in Thailand but I need to improve my oral skills._______ me if you have any speaking courses available, , 1. Shall you please tell, 2. Should you tell, 3. Could you please tell, 4. Do you please tell, 5. Can you tell please, ________ what are the starting dates, and how much they would cost? What kind of visa should I apply for? , 1. how about, 2. and if so, 3. and also, 4. or else, 5. and so, I would also like to know more about the accommodation. Are single rooms available? ________ the cost of a course? , 1. Do meals include with, 2. Are meals included in, 3. Will meals be included with, 4. Have meals included to, 5. Could meals include in, I _______ you could send me more information about your school and the surrounding area., 1. would be grateful if, 2. should be appreciated if, 3. could be grateful that, 4. will appreciate that, 5. shall be appreciated that, The graph compares the rate of smoking in men and women in Ireland between the years 1960 and 2000. It_______ that the rate of smoking for both men and women is currently declining and that fewer women have smoked throughout this period., 1. will be crystal clear, 2. can be clearly seen, 3. could obviously see, 4. should be obviously seen, 5. will see clearly, In 1960, 600 in every 1,000 men were smoking. This number _______ to 500 by 1974 and continued to diminish more steeply to 250 in 2000. , 1. increased slightly, 2. decreased tremendously, 3. rose sharply, 4. decreased gradually, 5. increased significantly, _________, the rate of smoking in women in 1960 was very low at only 80 in every 1,000. By 1968, this number increased to 170, and increased again more steeply to 320 in 1977. , 1. In addition, 2. Even though, 3. As a result, 4. Nevertheless, 5. In contrast, The rate of female smokers then_______ at 320 until 1984 at which point the figures began to decline, eventually dropping to 200 by 2000., 1. rose sharply, 2. remained stable, 3. went upward, 4. declined slightly, 5. increased gradually, In conclusion, we can see that the rate of smoking in men dropped throughout the whole period, but their numbers were always________ than the female figures. The rate of smoking in women increased until 1977 but then decreased for the rest of this period., 1. at the same level, 2. at a high level, 3. on the highest point, 4. at a high point, 5. at a higher level, Scientists have known for a while_____ most new parents that babies and small children are phenomenally quick on the uptake. , 1. same as, 2. so that, 3. like do, 4. as do, 5. so as to, _______of their time systematically exploring the world through trial and error, , 1. Little one spends most, 2. Little ones spends most, 3. Most of little one spends, 4. Most of little ones spend, 5. Most little ones spend, and they grasp___________ seem like complex concepts very quickly. Babies, we know, have an intuitive grasp of probability. In one experiment, researchers showed babies a box filled mostly with white balls and a few red ones, then drew out a sample of balls and showed it to the baby. , 1. what, 2. that, 3. who, 4. how, 5. why, If the sample was mostly red balls, the baby looked longer at it than__________ mostly white balls. The infant knew that drawing several red balls out of the bin was unlikely, and therefore noteworthy. , 1. when they are, 2. if they were, 3. so are they, 4. if it were, 5. what it was, Toddlers, multiple experiments have shown, can test hypotheses about how machines work: for example, they can__________ which blocks made a machine play when some but not all blocks trigger the toy., 1. count down, 2. keep up, 3. look out, 4. pull down, 5. figure out, Everyone these days should know how to use a computer. Normally, basic computer courses ______ most continuing education programs. , 1. offer, 2. offered at, 3. are offered, 4. are offering, 5. are offered by, They ______ and usually reasonably priced. These courses can usually be found in your district schools or community college, on evenings and weekends. , 1. convenient scheduled, 2. conveniently schedule, 3. scheduled conveniently, 4. are convenient schedules, 5. are conveniently scheduled, Career retraining programs often offer computer courses for free or at a low fee for ______ qualify. , 1. that who, 2. those are, 3. which are, 4. those who, 5. those who are, Check with your local Labor Department Office ______ on these programs., 1. for more information, 2. for many informations, 3. with much information, 4. about information more, 5. with many more informations, There are both online tutorials ______. Don’t worry if you don’t have a computer. , 1. or available courses, 2. and course available, 3. but courses available, 4. and courses available, 5. but an available course, Many public libraries allow patrons ______. , 1. used computers, 2. using computers, 3. use the computer, 4. to use their computers, 5. to be used the computers, Here are two websites that offer ______., 1. course online free, 2. course free online, 3. online courses free, 4. online-free courses, 5. free online courses, — , —, —-.

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