问题
选择题
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
答案
答案：D
by turns“轮流”；in turn“依次、反过来”；at turn无此短语；in return“作为回报”。
搜题请搜索小程序“爱下问搜题”