Yesterday evening, doctors ______ a wounded soldier in the field hospital when a sudden explosion ______ outside., operated on / happened, operated on / was happening, were operating on / was happening, were operating on / happened, The company plans to ______ its business into several neighboring countries., expansive, expand, expansion, expanded, While historians ______ documents about the resistance war, they found several rare photographs., examined, examine, were examining, had examined, The scientist's latest ______ helped doctors treat patients more effectively., innovation, innovate, innovative, innovator, The doctor specialized in treating ______ disorders., pancreatics, pancreas, pancreatic, pancreatically, During the resistance war, many young people ______ to join the army while enemy forces ______ nearby towns., were applying / were attacking, applied / were attacking, applied / attacked, were applying / attacked, The museum became more ______ after the city improved public transportation., accessible, accessed, access, accessibility, While the director ______ the animated movie, artists created thousands of drawings., had planned, planned, plans, was planning, The athlete's ______ helped her overcome many difficulties during training., determination, determine, determined, determining, The old phonograph ______ perfectly until it suddenly ______ a strange noise., was working / was making, worked / made, was working / made, worked / was making, The movie became a blockbuster because it ______ an exciting story and talented actors., had offered, offers, was offering, offered, Researchers studied the ______ characteristics of several animal species., biology, biological, biologically, biologist, The engineer ______ the machine when the power suddenly went out., had tested, tested, was testing, tests, Many people ______ the scientist for her contributions to medical research., admire, admirable, admiredly, admiration, While the surgeon ______ on the patient, the nurses carefully monitored his condition., had operated, was operating, operated, operates, The museum displayed many ______ objects from thousands of years ago., ancients, anciently, antiquity, ancient, The Communist Party of VN ______ several important reforms after the country ______ significant economic challenges., introduced / faced, was introducing / faced, introduced / was facing, was introducing / was facing, The new online platform makes educational resources more ______ to students in remote areas., access, accessibility, accessing, accessible, The company introduced a ______ technology that greatly improved patient care., cuttingly-edge, cutting-edge, cut-edge, edge-cutting, Last year, scientists ______ a new treatment while they ______ pancreatic diseases., discovered / studied, were discovering / studied, discovered / were studying, were discovering / were studying, His strong ______ during the competition impressed both coaches and teammates., determination, determine, determinately, determined, The field hospital ______ hundreds of wounded soldiers during the conflict., was treating, treating, treats, treated, The company developed an ______ device that can detect diseases more quickly., innovator, innovate, innovative, innovation, The doctor ______ the patient's illness after several tests, while the patient ______ quietly in the examination room., diagnosed / sat, diagnosed / was sitting, was diagnosing / sat, diagnoses / was sitting, The documentary explained how the ______ war influenced the country's history., resisting, resist, resistant, resistance, While students ______ poetry in class, the teacher explained several literary techniques., reads, were reading, read, had read, The government encourages technological ______ to improve the economy., innovative, innovate, innovation, innovator, Last week, archaeologists ______ an ancient village while they ______ near the river., discovered / were excavating, were discovering / excavated, were discovering / were excavating, discovered / excavated, The patient’s condition required immediate surgery, so doctors decided to ______ him immediately., operator, operate on, operation, operating, While researchers ______ biological samples collected from the rainforest, the laboratory's power supply suddenly failed., examined, had examined, examine, were examining, The museum is easily ______ by bus and train., access, accessibility, accessible, accessed, The company spent millions of dollars developing a ______ medical device that could detect cancer much earlier than existing equipment., cutting-edge, edge-cutting, cuttingly-edge, cut-edge, The ancient kingdom ______ rapidly until a major drought affected the region., expands, was expanding, expanded, had expanded, People greatly ______ the surgeon because he successfully ______ hundreds of wounded soldiers during the war., admire / operated on, admired / operated on, were admiring / operated on, admired / was operating on, The poet became famous for writing beautiful ______ about nature and human emotions., poetry, poems, poetic, poet, While doctors ______ the patient, they noticed several unusual symptoms., examinedly, examined, examine, were examining, The film's huge success made it one of the most profitable ______ of the decade., animate, blockbustering, blockbusters, blockbusting, The doctor quickly ______ the disease while the patient ______ quietly in the waiting room., diagnosed / was sitting, diagnosed / sat, was diagnosing / sat, diagnoses / was sitting, The government invested heavily in technological ______ to improve productivity., innovative, innovator, innovate, innovation, While the company ______ a cutting-edge medical device, investors visited the laboratory., developed, was developing, develops, had developed, The museum displayed several ______ artifacts dating back more than 2,000 years., ancient, ancients, antiquity, anciently, Doctors at the field hospital ______ wounded soldiers throughout the night during the conflict., treat, were treating, treating, treated, Her strong ______ allowed her to continue working despite many challenges., determining, determination, determine, determined, While the nurses ______ the injured soldiers, the surgeon arrived with additional medical equipment., treated, treat, were treating, had treated, The young engineer proposed an ______ solution to reduce energy consumption., innovative, innovator, innovatively, innovation

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