题目内容
【题目】Students in Grade Nine ____________a maths exam at this time yesterday.
A. takeB. are takingC. were takingD. have taken
【答案】C
【解析】
句意:昨天这个时候九年级的学生正在参加数学考试。考查动词时态辨析。at this time yesterday昨天这个时候,用于过去进行时“was/were + doing”结构;根据句意结构和语境,可知选C。
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