My uncle worked as a volunteer in Tibet last year. He told me a lot of his unforgettable _________ while working there.

_____ has recently been done to provide more buses for the people, a shortage of public vehiclesremains a serious problem[ ]

This is the factory ____ we worked a yearago

Do you know our town at all? —– No, this is the first time I ______ here

He is a teacher ___________ he isChinese. so