1.It's____difficult for us to climb up the mountain.
A.too B.very
2.The stuff used____trash.
A.to being called B.to be called
C.for D.to call
3.What you said___me very much,could you say it again more slowly?
A.interests B.to interest C.interesting D.interested.
4.NO one tells_____,so I need your help.
A.how should I do B.how to do it
C.what should I do D.what to do it.
5.There_____great changes in our country since 1979.
A.have been B.has been C.are D.were.
6.I don't think he will come here on time,_____?
A.won't he B.will he C.does he D.is he.
7.I think he must be a doctor,_______?
A.don't I B.mustn't he C.doesn't he D.isn't he
我每题要解析.