________ in Tibet for ten years, he hasbeen accustomed to the life and the climate there.

You can see the stars on a clear night, but in the daytime they are ____ .

He always appears when we are in trouble.—We can find a true friend _________ him

She gave me a list in case I _____forget what to buy. [ ]

The English party starts ____ 7:30 ____ the evening.