[题目] mother is a teacher.A. Tom and Bill B. Tom's and BillC. Tom and Bill's D. Tom's and Bill's 题目和参考答案——青夏教育精英家教网—

【题目】_____ mother is a teacher.

A. Tom and Bill B. Tom's and Bill

C. Tom and Bill's D. Tom's and Bill's

【答案】C

【解析】句意：汤姆和比尔的妈妈是一名老师。考查名词所有格。Tom and Bill's：汤姆和比尔的，指汤姆和比尔共有的…，后面的名词可用单数或复数；Tom's and Bill's：汤姆和比尔的，指汤姆和比尔各自的…，后面的名词通常是复数；根据后面的名词mother单数，结合句意和语境可知选C。

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