33.In our childhood, we were often ____ by Grandma to pay attention to our table manners.

A. demanded　　 B. reminded　　　 C. allowed　　　 D. hoped

32. After he retired from office, Rogers _____ painting for a while, but soon lost interest.

A. took up　　　 B. saved up　　 C. kept up　　　 D. drew up

31. The telephone rang at midnight, but it stopped ______ I could answer it.

A. when　　 B. that　　 C. before　　 D. since

30. The radiation amount of a mobile phone for two half-hour periods per day is equal to ___ to an X-ray for ten seconds.

A. expose　　 B. exposing　　 C. exposed　　 D. being exposed

29. If only he _____ to send that letter to my grandpa, my grandpa will come to help me. Look, I’m so helpless now.

A. remembered　 B. remembers　　 C. has remembered　　 D. had remembered

28. ______ he realized it was too late to return home.

A. Not until dark　 B. It was until dark that　 C. It was not until dark that　 D. It was dark that

27. Several of the off-shore islands are ______ , now that we have a motor boat.

A. available　　 B. accessible　　 C. convenient　　 D. achievable

26. It’s already 10 o’clock, I wonder how it ____ that she was two hours late on such a short trip.

A. came over　　 B. came out　　　 C. came about　　 D. came up

25. Early _____ the morning of May 1, we started off _____ the mountain village.

A. in; for　　 B. in; to　　 C. on; /　　 D. on; for

24. One of the greatest benefits of Internet friendships is that they are based on common interests, ________ appearance, age or popularity.

A. more than　 B. rather than　 C. or rather　 D. more or less