If you want people to treat you nicely you have to treat nicely too.A. theirB. theyC. th

问题补充：

If you want people to treat you nicely, you have to treat nicely, too.

A. their

B. they

C. them

D. themselves

答案：

A. their

B. they

(答案→)C. them

D. themselves

解析：句意：如果你想要别人对你好，你也必须对他们好，treat对待，及物动词后接宾语，宾格作为宾语，故选C