— 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
You _____ phone him if you want to, but you _____! He will surely phone you.
#90175
A
may; mustn’t
B
have to; needn’t
C
can; needn’t
D
can; doesn’t need
It is suggested that a doctor ____immediately.
#86426
A
be sent for
B
send for
C
is sent for
D
should send for