---- ____?---- Maybe the possible solutions t...

---- ____?

---- Maybe the possible solutions to the air pollution.

A. Do you think what they are talking about

B. Do you think what are they talking about

C. What do you think they are talking aobut

D. What do you think are they talking about

高二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. has been used　    B. have been used    C. is used　        D. are used

高二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 clear．

A．are being used                                 B．have been used

C．has been used                                D．had been used

高二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 clear.

A. are being used                B. have been used

C. has been used                 D. had been used

高二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 clear.

A. are being used   B. have been used   C. has been used  D. had been used

高二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. are being used     B. have been used        C. has been used      D. had been used

高二英语单项填空中等难度题查看答案及解析

All possible means ___ been tried to stop the air______.

高二英语单项填空简单题查看答案及解析

I don’t think he is ______ to come to our help when we get into trouble.

A. maybe　　 B. possible　 C. likely　　 D. probable

高二英语单项填空中等难度题查看答案及解析

By looking at a problem in as many ways as possible, creative thinkers can find solutions that would ___ remain invisible.

A. otherwise     B. yet            C. already      D. forever

高二英语单项填空中等难度题查看答案及解析

The scientists are beating their brains, trying to ______ a solution to the problem.

A. look up to        B. live up to            C. come up with    　　 D. keep up with

高二英语单项填空中等难度题查看答案及解析