题目内容

【题目】At the beginning of the twentieth century,___the population all over the world?

A.what was

B.what were

C.how many are

D.how much is

【答案】A

【解析】句意:20世纪初期,全世界有多少人口?对population,price,speed等提问时应用what。population指某地区或国家的人口数时,应作为单数。

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