airplane, , light bulb, , camera, , Iranian scientiste, , modern building, , an old laboratory, , refinery, , Melika tries hard to learn English., , Babak is an energetic boy., , The students do experiments in the school laboratory., , Children grow up rapidly. , , She is doing research on blood cells., , He has the flu and feels weak., , No success is possible without hard work., , Edison invented the first light bulb., , We can help you solve your problems, , This book can develop your speaking skill., , Her belief in Allah gave her hope during diff icult times., , Fortunately, his father is going to quit smoking., , He gave up his work without saying anything to us., , There are thousands of things I want to do., , The airplane is one of the greatest inventions of human., , Some scientists are very successful in their lives., , When children grow up their personality changes., , He changed the light bulb to have more light in the, , Taher Safaarzadeh was an Iranian writer, translator and thinker..

new words lesson three , 10th grade

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