It’s time that you_____with the relief work in the flood-stricken area after the awful typhoon.
#86767
A
must help
B
can help
C
helped
D
have helped
推荐题目
He was busy with his essay at that time. Otherwise he ____ over to help us.
#87011
A
had come
B
would come
C
would have come
D
was coming
I        the wonderful World Cup final of 2010 live on TV, but this summer vacation I missed it.
#87960
A
could have watched
B
might watch
C
must have watched
D
need have watched
— Why! I _____ get you on the phone. — We ______ basketball on the playground when you phoned. 
#89278
A
didn't; must be playing
B
couldn't; must be playing
C
couldn't; must have played
D
didn't; must have been playing