I’m sorry, Bill. I _________ the book to you last week, but I was so busy that I forgot to do so.
#63435
A
must have returned
B
could return
C
should have returned
D
might return
推荐题目
We ________the difficulty together, but why didn’t you tell me?
#62629
A
should face
B
might face
C
could have faced
D
must have faced
Doctor Wang      at seven o’clock for the conference, but she didn’t turn up. 
#62827
A
should have arrived
B
should arrive
C
should be arrived
D
should be arriving
---I have sore eyes.  ---You _____ play computer games too long.
#74085
A
must
B
shouldn’t
C
had better
D
don’t