A.tried; couldn’t | B.have tried; won’t |
C.tried; won’t | D.have tried; can’t |
3 . I lived with my brother this winter and didn’t have to pay rent. So I
4 . The custom of giving gifts at Christmas
5 . I went to the doctors yesterday, I had to wait for half an hour before he
6 . A computer
7 . —The test is very important to us. Do you think so?
—Yes, so we ________ be too careful during the test.
A.mustn’t | B.daren’t | C.needn’t | D.can’t |
A.couldn’t | B.can’t | C.mustn’t | D.shouldn’t |