Give them a hand this time and I am sure they will offer theirs in the future.A. by turns

发布时间：2020-08-17 14:01:11

Give them a hand this time and I am sure they will offer theirs      in the future.
A. by turns
B. in turn
C. at turn
D. in return

网友回答

A. by turns
B. in turn
C. at turn
(答案→)D. in return
解析：by turns“轮流”；in turn“依次、反过来”；at turn无此短语；in return“作为回报”。
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