The three children looked after their sick mother______.

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The three children looked after their sick mother______.

A. in return

B. by turn

C. in turn

D. in return for

参考答案:

C18.答案为C 参考译文:孩子们轮流照顾他们生病的母亲。本题考查短语意义辨析。A作为回报,B没有此短语,C in turn或by turns都有轮流、交替的意思,D以作……的回报,