32. People always shake hands and say “How do you do?” when ______ to each other.

A. introduced　 　　B. introducing　 　C. to be introduced　 　D. to be introducing

31. _____ he has studied in New York for two years, he hasn’t been to the Statue of Liberty yet.

　A. If　 B. Although　 C. Even　　 D. Until　　

30. This is a serious accident and Terry doesn’t hope his son ______ in it

A. being involved　 B. involving　 C. to be involved　　 D. is involved

29. When it became clear, she ______ the wet clothes on the grass to dry them in the sun.

A. spread 　　　B. opened　　 　　C. dropped 　　　D. hung

28. - It is raining hard.

　- ______, we won’t be able to go camping.

A. If it stops　　　 　　　　　　　　B. If it won’t stop

C. Unless it stops　　　 　　　　　　D. Unless it won’t stop

27. Although she is slightly overweighed, yet the chair is too weak to _____ Mrs Green.

A. hold on　 B. hold up　 C. hold over　　 D. hold in

26. Be ____ against pickpockets on a bus and put your money ____ it’s safe.

A. on your guard; there　 B. off your guard; where　

C. on guard; where　 　　D. off guard; there　

25. ____ he does his work, I don’t mind what time he arrives at the office.

　A. So far as　　 B. So long as　　 C. As far as　　 D. So as 　

24. After the three-year war, the two sides _____ a deal at last with each other and stopped fighting.

A. arrived　　　　　　　 B. did　　　　　　 C. agreed　　　　　 D. made

23. Be careful! This is a dangerous _____ dog and it might bite you at any moment.

A. unconscious　 B. aggressive　　 C. rude　　 D. traditional