单项选择The earth is our house.We must _____ the land,air and water c_英语解答

单项选择
The earth is our house.We must _____ the land,air and water clean.
A .change B.let C.stay D.keep

人气：182 ℃　时间：2020-03-26 04:58:35

解答

keep 当意思为保持环境卫生整洁时用 keep
keep clean是常用的词组