题目内容
【题目】The number of books in the bookshop is about 10,000 and a number of them _______about science.
A. is B. was C. are D. were
【答案】C
【解析】考查主谓一致的用法。依据前半句中的谓语动词“is(一般现在时)”可推断出后半句的时态也应是一般现在时,故排除B、D两项;短语“a number of…”后的谓语动词用复数形式,故选C。
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