问题

any cities in China dreadfully blanketed by thick haze, the environmental problem is _____ Chinese people concern most nowadays.

A:what
B:which
C:where
D:when;

正确答案是：

同类题型

. I am arranging for Mr. Smith, one of our inspectors, to come and ______the damage caused to the building.

better not smoke here,________

You should ________ your post, or you will be punished by your manager.

You can’t ________ her in knowledge ofclassical music.

We have to write a description of the street ______ we live and give it to the teacher tomorrow.