You cant travel on this train unless you have a reservation.---> If ________________________________________________

Câu hỏi :

You can't travel on this train unless you have a reservation.---> If ________________________________________________

A. you have a reservation, you can't travel on this train.

B. you don't have a reservation, you can't travel on this train.

C. you don't have a reservation, you can travel on this train.

D. you won't have a reservation, you can't travel on this train.

* Đáp án

B

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