you’ll miss the train.A. Hurry up andB. Be quick orC. Unless you hurry up orD. If you

问题补充：

you’ll miss the train.

A. Hurry up, and

B. Be quick, or

C. Unless you hurry up, or

D. If you not be quick

答案：

A. Hurry up, and

(答案→)B. Be quick, or

C. Unless you hurry up, or

D. If you not be quick

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