问题
Listen! Peter is singing in the classroom! —It _____ be him. He has gone back to his hometown.
A:must
B:mustn’t
C:may not
D:can’t
B:mustn’t
C:may not
D:can’t
正确答案是：
同类题型
No matter how hard he worked, ___ ____
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Jim has a sister. He likes playing games with ________.
The charity show is really wonderful.—Yes. I think it’s ________ great success.
What time ___________ we ___________ tomorrow? —At six in the morning．