问题
选择题
He has given me so much help that I really want to do something for him ______.
A．in turn
B．by turns
C．in return
D．in answer.
答案
答案：C
题目分析:句意：他给了我这么多的帮助，我真得想能为他做点事情作为回报。In turn 轮流；by turns 轮流；in return 作为回报；in answer应……要求。选C。