题目内容
5.他有规律地进行锻炼，这有助于他保持健康。
5. He takes exercise regularly, which helps him to keep fit.
根据句意使用恰当的词填空（注意：填人的单词数量不得多于3个）
1. The parents provided_____ their children food and clothing.
20. It is the duty of the police to social order.
A. deserve B, reserve
C. preserve D. conserve
4.There are four rooms in the house,______________(其中一间)is a drawing room.
5.He went to Beijing,___________he had an important meeting.
4. The old man had two sons, both_______are working abroad.
11. There is no simple answer, _______is often the case in science.
20. He accidentally he had cheated in the last exam, or he wouldn't have got so high a mark.
A. pointed out B. gave away
C. took out D. tried out
5. 直到你许诺帮助她以后，她才会离开。
She ____________ you promise to help her.
