30. It is necessary for us to ___ regularly to keep fit.

A. work out　　 B. do exercises　　 C. work　　 D. go to the gym

29. The teacher asked a second question ____ I could answer the first one.

A. before　　　 B. after　　　 C. when　　　　 D. as

28.I want to buy a tie to ____ this brown suit.

A. fit　　　　 B. suit　　　　 C. match　　　 D. fit for

27.____ to make herself _____ clearly, she spoke at the top of her voice.

A. Hope; hear　　 B. Hoping; heard　　 C. Hoping; hear　　 D. Hope; to hear

26. Look at your room! It requires ______.

A. to clean　　　 B. cleaning　　　 C. cleaned　　 D. be cleaned

25. Once you are in the habit of rushing life, being on the go from morning till night, it is hard　　　　 .

A. to slow down　　　　　　　　　　 B. slows down

C. to be slowed down　　　　　　　　 D. slowed down