题目内容
【题目】Half the water ______ to wash the clothes last year.
A. are used B. were used
C. is used D. was used
【答案】D
【解析】句意:去年有一半的水被用来洗衣服。考查时态和动词数的辨析。Last year:去年,过去的时间,此句应用过去式;Half the water:一半的水,不可数名词,谓语应用单数,结合句意和语境可知用was used,选D。
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