25.What is learned in books can not have the same deep effect on a child’s character ______ is learned through experience.

A. what　　　 B. as　　　　 C. as what　　 D. when what

24.He was about to tell me the news _______ someone patted him on the shoulder.

A. as　　　　 B. until　　　　 C. while　　 D. when

23.Sometimes the earthquake is so violent that it can destroy the whole city, ______ happened in Tangshan in 1976.

A. as　　　　 B. that　　　 C. where　　　 D. like

22.Would you like to have a break ______ shall we go on with the work?

A. and　　 B. then　　 C. therefore　　　 D. or

21.Recently I bought an ancient Chinese vase, _____ was very reasonable.

A.which price　　 B. the price of which　　 C. its price　　 D. the price of whose

20.He lived in Paris for three months, during ______ time he learned some French.

A. this　　 B. that　　　 C. it　　　 D. which

19.---Do the factory leaders meet every Monday morning?

　 ----Yes, ______ there is nothing important to deal with.

A. since　　　 B. if　　　　 C. unless　　　 D. therefore

18.You can go out _______ you promise to be back before 12o’clock.

A. so that　　　 B. as far as　　 C. as long as　　 D. in case

17.__________ she knows a lot of things.

A. A child she is　 B. As she is a child　 C. Child as she is　 D. Child as is she

16.-Do you remember ______ he came.?

　 ---Yes, I do. He came by car.

A. how　　　　 B. when　　　 C. that　　　　 D. if