_____ work has been done to prevent the river...

_____ work has been done to prevent the river being polluted.

A .A number of     B A mass of      C Several        D. A good many

高一英语单项填空中等难度题查看答案及解析

Every possible means _______ been taken to prevent the river _________.

高一英语单项填空简单题查看答案及解析

The government has to close those small factories to prevent the water of the river ______.

A. polluting        B. from polluting        C. being polluted       D. polluted

高一英语单项填空中等难度题查看答案及解析

The government has to close those small factories to prevent the water of the river ______.

A. polluting            B. from polluting

C. being polluted        D. polluted

高一英语单项填空中等难度题查看答案及解析

The government has to close those small factories to prevent the water of the river ______.

A. polluting              B. from polluting

C. being polluted         D. polluted

高一英语单项填空中等难度题查看答案及解析

The government has to close those small factories to prevent the water of the river ______.

高一英语单项填空简单题查看答案及解析

This is the best way _____ the river from _____ .

高一英语单项填空简单题查看答案及解析

We must do whatever we can _____ the river _____ any more.

A. to keep; polluted　　　　　　　　 B. to prevent; being polluted

C. keep; polluted　　　　　　　　　　 D. prevent; being polluted

高一英语单项填空中等难度题查看答案及解析

New ways _____ to prevent the river _____.

高一英语单项填空简单题查看答案及解析

He made up his mind to devote his life ________ the river ________ polluted.

A. to prevent, to be              B. to prevent, from being

C. to preventing, to be            D. to preventing, from being

高一英语单项填空中等难度题查看答案及解析