题目内容：

It is important to stand in line when you wait for a bus改祈使句

优质解答

It is important to stand in line when you wait for a bus.改祈使句
Stand in line when you wait for a bus.
当你等车时,要排队.

追问：

还要个否定的

追答：

Don't cut in line when you wait for a bus. 等车时，不要插队。