题文
----Must we clean the classroom now?
----No, you _________. It _________ after school.
| A．needn’t, must be cleaned | B．mustn’t, needn’t be cleaned |
| C．needn’t, can be cleaned | D．don’t have to, may clean |
----Must we clean the classroom now?
----No, you _________. It _________ after school.
| A．needn’t, must be cleaned | B．mustn’t, needn’t be cleaned |
| C．needn’t, can be cleaned | D．don’t have to, may clean |
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