We should try our best to keep our environment from______.A．pollutingB．pollutedC_刷题宝

题干

We should try our best to keep our environment from______.

A．polluting

B．polluted

C．being polluted

D．having polluted

上一题下一题 0.64难度单项选择更新时间:2013-03-22 11:03:25

答案(点此获取答案解析）

小学学科试题库

初中学科试题库

高中学科试题库