Thebestwaytopreventtheairpollu

The best way to prevent the air polluting _____ , but the sky is still not clear.

A．is used

B．are used

C．has been used

D．have been used

登录免费查看答案和解析

相关试题

This is the first time we _____ a film in the cinema together.

A．see

B．had seen

C．saw

D．have seen

收藏答案/解析

Another primary school is reported ____ for children in WenChuan by now.

A．to have been built	B．to have built
C．being built	D．to be built

收藏答案/解析

I have keeping the photo of my daughter _______ I can see it easily every day.

A．which

B．where

C．when

D．whether

收藏答案/解析

The language used in advertisements differs from ____ used in ordinary readings.

A．which

B．what

C．that

D．it

收藏答案/解析

—Keep ____ in mind that you have to be home by 10 o’clock.
—Ok, I will.

A．it

B．this

C．one

D．these

收藏答案/解析