问题
s that noise, John—Oh, don’t you know that the school library
A:don’t have to
B:oughtn’t to
C:mustn’t
D:can’t
B:oughtn’t to
C:mustn’t
D:can’t
正确答案是：
同类题型
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you going to live with us this summer,Auntie Rosemary— ______, dear