— We would appreciate it if you could stay for lunch.— Sorry, I         . I have another appointment.  
#87659
A
won’t
B
shan’t
C
can’t
D
mustn’t
推荐题目
The boy student is poor in health now; his parents wish that his health _____when he grows up
#88103
A
can improve
B
could improve
C
can be improved
D
could be improving
--How dangerous it was ! ---Yes, but for the passer-by’s quick action,the girl _____ .
#87135
A
had been drowned
B
might be drowned
C
would have been drowned
D
must have been drowned
Listen! His family must be quarreling, _____?
#87227
A
mustn’t it.
B
isn’t it.
C
aren’t they.
D
needn’t they.