Listen carefully or you won't catch what your teacher is saying.(保持句意基本不变)

问题描述:

Listen carefully or you won't catch what your teacher is saying.(保持句意基本不变)
_____ you _____listen carefully,you won't catch what your teacher is saying.
James spent ten years making this amazing film.(保持句意基本不变)
_____ _____ James ten years to make this amazing film.
Take a bus or you will miss the plane.(保持句意基本不变)
_____ you _____ take a bus,you will the plane.

1 If don't
2 It took
3 If don't谢谢亲!