Shall I turn on the TV, Mom—No. You should be quiet _____ wake up your sleeping brother.

ch is the petrol per liter today —Oh, 600 yuan It ______ sharply since last month

While_________in Britain, he made friends with the natives there.

40．I don’t remember how many years ago_________people began to growpine apples here.

We are often told by our teachers not to do such things as don’t ________ a harmonious society.