Everypossiblemeanstopreventthe

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

登录免费查看答案和解析

相关试题

Never before seen anybody who can play tennis as well as Robert. (2012 . 江西)

A．had she

B．she had

C．has she

D．she has

收藏答案/解析

Not until he went through real hardship the love we have for our families is important.（2013．福建）

A．had he realized

B．did he realize

C．he realized

D．he had realized

收藏答案/解析

At the meeting place of the Yangtze River and the Jialing River one of the ten largest cities in China. (2010 .重庆)

A．lies Chongqing

B．Chongqing lies

C．does lie Chongqing

D．does Chongqing lie

收藏答案/解析

Try       she might, Sue couldn’t get the door open.(2011 .全国I)
A. if
B when
C. since
D. as

收藏答案/解析

--- Is everyone here?
--- Not yet … Look, there the rest of our guests! (2010 … 江苏)

A．come

B．comes

C．is coming

D．are coming

收藏答案/解析