Every possible means _____ to prevent the air...

7、Every possible means ______ to prevent the air pollution, but the sky is still not clear.

高三英语单项填空简单题查看答案及解析

Every possible means _____ to prevent the air pollution, but the sky is still not clear.

A. is used B. are used C. has been used D. have been used

高三英语单项填空中等难度题查看答案及解析

Every possible means ________ to prevent the air pollution，but the sky is still not very clear.

A．were using　             B．have used

C．has been used　         D．was used

高三英语单项填空中等难度题查看答案及解析

Every possible means ________ to prevent the air pollution, but sky is still not clear.

A.is used B.are used C.have used D.has been used

高三英语单项填空中等难度题查看答案及解析

All possible means ____ to prevent the air pollution, but the sky is still not clear.

A. is used        B. has been used        C. are use          D. have been used

高三英语单项填空中等难度题查看答案及解析

According to the World Health Organization, air pollution is ____ millions of deaths every year.

A. original from    B. suitable for

C. accessible to    D. responsible for

高三英语单项填空中等难度题查看答案及解析

In order to keep the balance of ecosystem, every possible means _______to deal with the problems of the over-exploiting of natural resources.

A．has tried          B．has been tried      C．have taken        D．have been taken

高三英语单项填空中等难度题查看答案及解析

I have done everything possible to prevent him from running the risk but ______.

A. in time　　 B. in case　　 C. in vain　　 D. in need

高三英语单项填空中等难度题查看答案及解析

In view of the global financial crisis, every possible means ________ to stimulate the economic development in China.

A．have tried      B．have been tried

C．has tried      D．has been tried

高三英语单项填空中等难度题查看答案及解析

So far, almost every possible means ______to provide accommodation and medical rescue for the people in the flood-stricken area.

A. were tried　　 B. was tried

C. have been tried　 D. has been tried

高三英语单项填空中等难度题查看答案及解析