早教吧 育儿知识 作业答案 考试题库 百科 知识分享

Wemustdoeverythingwecanourearthcleanerandsafer.A.madeB.tomakingC.makeD.tomake

题目详情

We must do everything we can _____ our earth cleaner and safer.

A. made      B. to making

C. make     D. to make

 

▼优质解答
答案和解析

D