4、The evening news comes on at Seven o' clock and ______  only thirty minutes.

A. keeps               B. continues           C. finishes            D. lasts

3、There were dirty marks on her trousers ______ she had wiped her hands.

A. where           B. which         C. when            D. that

2、When flint _______  to the market, these products enjoyed great success.

A. introducing                      B. introduced

C. introduce                        D. being introduced

1、―Can I look at the menu for a few more minutes before I decide?

―Of course. _______ sir.

A. Make yourself at home               B. Enjoy yourself

C. It doesn't matter                        D.Take your time

38、  What’s the matter with the man hanging his head there?

Well, if you _______ know, he was caught stealing my car.

   A. must       B. may      C. can      D. shall

37、This is the very place __________ we once had military training.

   A. that      B. which      C. where      D. there

36、It took Mary a long time to __________ a new dress at the store.

   A. pick up      B. pick out       C. take up      D. take out

35、Last year the advertising rate __________ by 20 percent.

   A. raised       B. raising       C. was rising        D. rose

34、 Is __________ necessary to complete the design before National Day?

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

33、The little boy showed great interest __________ chemistry when he was doing the experiment __________ the first time.

A. in; for      B. on; for      C. in; on       D. for; at