1道英语单选
问题描述:
1道英语单选
1.The government decided to do something to _____ the environment_______.
a keep;from pulluting
b prevent;being polluted
c stop;from being polluting
d hold;from being polluted
选什么?为什么?
答
b.
环境是被污染的,排除A,C.应用被动语态,
B的语义是防止环境被污染.固定用法
D没有那种形式