他们吃光了蛋糕，但留下了一些饼干。

They'd eaten all the cake but they'd ___left some biscuits.

还有剩下的三明治吗？

Are there any sandwiches ___left?

如果你要洗澡，确保给我们留下足够的热水。

If you're having a bath, make sure you ___leave enough hot water for the rest of us.