With your brother’s help, I’ve made great progress in English and I really want to do something for him ．
A. in turn
B. by turns
C. in return
D. in answer
网友回答
A. in turn
B. by turns
(答案→)C. in return
D. in answer
解析：考查短语辨析。in turn 反过来，by turns 一次，轮流，in return 作为回报，in answer 作为回答，句意：在你哥哥的帮助下，我在英语方面取得了很大进步，我真的想为他做一些事情作为回报。所以选C。