He must be in the classroom, ________ he?

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He must be in the classroom，　　　 he?

　 A．mustn’t　　　 B．can’t　　　 C．isn’t　　　　 D．can

The boy must be in the classroom，_________ he?

1. A.
   mustn't
2. B.
   needn't
3. C.
   hasn't
4. D.
   isn't

The boy must be in the classroom，_________ he?

[　　]

The boy must be in the classroom，_________ he?

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