26.(2001上海春季, 28) Sandy could do nothing but _______ to his teacher that he was wrong.

A.admit B.admitted

C.admitting D.to admit

25.(NMET 2001北京春季, 24)One learns a language by making mistakes and _______ them.

A.correct B.correcting

C.corrects D.to correct

24.(NMET 2001北京春季, 21)_______ late in the afternoon, Bob turned off the alarm.

A.To sleep B.Sleeping

C.Sleep D.Having sleep

23.(2001上海, 39) Fishing is his favorite hobby, and _______.

A.he'd like to collect coins as well

B.he feels like collecting coins, too

C.to collect coins is also his hobby

D.collecting coins also gives him great pleasure

22.(2001上海, 38) The bell _______ the end of the period rang, _______ our heated discussion.

A.indicating;interrupting B.indicated;interrupting

C.indicating;interrupted D.indicated;interrupted

21.(2001上海, 31) I really appreciate _______ to relax with you on this nice island.

A.to have had time B.having time

C.to have time D.to having time

20.(2001上海, 29) Do let your mother know all the truth.She appears _______ everything.

A.to tell B.to be told

C.to be telling D.to have been told

19.(2001上海, 28) Finding her car stolen, _______.

A.a policeman was asked to help

B.the area was searching thoroughly

C.it was looked for everywhere

D.she hurried to a policeman for help

18.(NMET 2001, 35) _______ such heavy pollution already, it may now be too late to clean up the river.

A.Having suffered B.Suffering

C.To suffer D.Suffered

17.(2002 上海春季, 37) With a lot of difficult problems , the newly-elected president is having a hard time.

A.settled B.settling

C.to settle D.being settled