protecting
make a contribution to做出贡献；捐赠,to 是介词,后跟动名词（ v ing)
Everyone should make a contribution to __(protect)the world.
Everyone should make a contribution to __(protect)the world.
并说明理由
并说明理由
英语人气：247 ℃时间：2020-05-03 06:39:40
优质解答
我来回答
类似推荐
- Everyone should make a contribution to ___ the environment A protecting B protects C protection
- Everyone should try to protect the environment.
- It's our duty to make a contribution to______(protect) the environment. 括号中应填什么形式?为什么?
- Everyone should try ___ best to protect the environment.
- 如果每个人都为保护环境做出自己的贡献 If everyone -----a contribution to protect the environment.