问题

You are required towrite ______ so that we can see it clearly
A:must
B:mustn't
C:have to
D:don't have to
B:mustn't
C:have to
D:don't have to
正确答案是:
同类题型
When he walks _______ the shop, he often stops ____ a look.
I’ve got to go now. —Must you I ______you could stay for dinner with us tonight.
sare like leaves, __________everywhere, but true friends are like diamonds,precious and rare
The young man with long yellow hair is most _________ the murderer.