According to the latest study,most traffic accidents     be prevented if drivers are careful enough.
#62242
A
must
B
can
C
have to
D
need
推荐题目
 —________I complete so much my homework now?— No, you ________.You can do it after supper.
#74934
A
May; ought not to
B
Should; can’t
C
Can; mustn’t
D
Must; needn’t
You       buy a gift, but you can if you want to.
#62926
A
must
B
mustn't
C
have to
D
don't have to
– James didn’t ____ last night, did he?– No. He ____. We had changed our plan.
#63144
A
turn away; shouldn’t have come
B
turn up; needn’t have come
C
turn up; didn’t need to come
D
turn away; doesn’t need to come