31. Old memories are often called ______ when you hear a particular song or a piece of music.

30. Do you mind if I carry______with my work while you are getting tea ready?　　　

29. We assure him _____ going to America smoothly. 　

28. We accused him ______killing our friend. 　　

27. He is addicted ______smoking and drinking wine. 　

26. All the students, please put your hands _____the poor children in the distant area.

25. Please leave _____all the useless contents in the article. 　

24. This project adjusted ___what I meant. 　　　

23. His health broke ____under the pressure of work.

22. The government should come up ____a better solution to the problems caused by the high price of beef.