Question

【题目】—Ｗhat should we do to make our hometown more and more beautiful?
—I think everyone are suppose to make a contribution _________ the environment.
A.to protect
B.in protecting
C.to protecting
D.for protecting

Answer 1

【答案】C
【解析】句意：—我们应该怎么做能使我们的家乡越来越美丽？—我认为每个人应该为保护环境做出贡献make a contribution to doing sth为---做出贡献；故选C。