相关考题
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单项选择题
Goodbye, Miss Liu. I'm very pleased（）
A.to meet you
B.having met you
C.be meeting you
D.to have met you -
单项选择题
In China, children（）school at seven.
A.has to start
B.must to start
C.have to start
D.can start -
单项选择题
I（）finish my homework now. I can do it at the weekend.
A.have to
B.don‘t have to
C.must
D.mustn‘t
