—How did you like the concert last night ?—I enjoyed it very much, but the dancers _____ a better job.
#63517
A
could have done
B
must have done
C
could do
D
had done
推荐题目
I looked everywhere for the book, but I ______find it
#76915
A
mustn’t
B
needn’t
C
may not
D
couldn’t
We can eat in the dining hall. But we _______ eat in the classroom.
#75733
A
don’t
B
didn’t
C
can’t
D
aren’t
—_______ I borrow your English book?—Yes, of course you _______. 
#75280
A
Could; could
B
Must; can
C
Could; can
D
Can; could
-Is that Mary?-No, it _______be her. She has gone to Tokyo. 
#75898
A
can’t
B
may
C
needn’t
D
mustn’t