Maybe if I ________ science,and not literature then,I would be able to give you more help.(2011·北京)
#86550
A
studied
B
would study
C
had studied
D
was studying
推荐题目
 We        the manager , but no one        the telephone number .
#87851
A
could have called ; knew
B
could have called ; had known
C
could call ; had known
D
could call ; knew
--I stayed at a hotel while in New York.  ---Oh, did you? You ___ with Babara.
#89408
A
could you stayed
B
could stay
C
would stay
D
must have stayed
The doctor recommended that you ____________ swim after eating a large meal. 
#86744
A
wouldn’t
B
couldn’t
C
needn’t
D
shouldn’t