Boy, you _______ lean (伸) out of the window while the bus is running. That’s dangerous.—Sorry, I won’t do that again.

It’s quite some time ______ our teammate Wang Qiang got injured in the foot, but we firmly believe it won’t be long _________ he recovers from it

See the flags on top of the building?That was______we did this morning．

The room _______ very useful when we had visitors

Mr Li was in such a _________ because his daughter was ill in hospital.