【題目】LED lighting, even in most developed countries, ________ long enough to know its effects across the human lifespan.
A.has not been usedB.was not used
C.had not been usedD.is not being used
全優點練單元計劃系列答案科目：高中英語 來源： 題型：
【題目】This major road is ______ construction. We’d better take an alternative way.
A. inB. onC. underD. with
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【題目】They must have stayed at home last night,________?
A. mustn’t theyB. haven’t theyC. didn’t theyD. must they
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【題目】Usually newborn babies can ______ between a man’s and a woman’s voice.
A.squeezeB.trapC.inspectD.discriminate
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【題目】________in the center of the city, the park is a good place for a rest at weekends.
A. LocateB. To locateC. LocatedD. Locating
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【題目】The police are reopening the investigation ________ the new evidence.
A.in tune withB.in conflict with
C.in light ofD.in place of
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【題目】________ into account the possibility of stormy weather, we decided to spring for a cabin instead of setting up a tent.
A.To takeB.TakingC.TakeD.Taken
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【題目】After the experts ________ a whole year on the traffic issue, they finally came to a solution.
A.had spentB.were spendingC.have spentD.would spend
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