Take the underground,or you will be late for the lecture.

问题描述:

Take the underground,or you will be late for the lecture.
You __________ be late for the lecture __________ you take the underground.
保持愿意。
Mum gave me a Haibao as a New Year presen.(改为被动语态)
I _________ _________ a Haibao as a New Year present.

乘地铁,不然你听讲座会迟到的
won't /if
was/given