31. Cathy is taking notes of the grammatical rules in class at Sunshine School, where she ________ English for a year.

　 A. studies　　　　　　 B. studied　　　　　 C. is studying　　　　 D. has been studying

30. We live day by day, but in the great things, the time of days and weeks _________ so small that a day is unimportant.

　 A. is　　　　　　 B. are　　　　　 C. has been　　　　　　 D. have been

29. As the light turned green, I stood for a moment, not _________, and asked myself what I was going to do.

　 A. moved　　　　　 B moving　　　　　 C. to move　　　　 D. being moved

28. Having checked the doors were closed, and _________ all the lights were off, the boy opened the door to his bedroom.

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

27. To save class time, our teacher has ________ students do half of the exercise in class and complete the other half for homework.

　 A. us　　　　　　 B. we　　　　　 C. our　　　　　　　 D. ours

26. It’s hard for him playing against me. I’ve got nothing to play for, but for him, he needs to win so ________.

　 A. far　　　　　　 B. well　　　　　 C. little　　　　　 D. badly

25. As the years passed, many occasions-birthdays, awards, graduations-________ with Dad’s flowers.

　 A. are marked　　　 B. were marked　　　 C. have marked　　　 D. had marked

24. The biggest problem for most plants, which ________ just get up and run away when threatened, is that animals like to eat them.

　 A. shan’t　　　　　 B. can’t　　　　　 C. needn’t　　　　　 D. mustn’t　

23. Polar bears live mostly on ________ sea ice, which they use as _______ platform for hunting seals.

　 A. a; a　　　　　　 B. a; the　　　　　 C. 不填; a　　　　　　 D. the; 不填

22. __________ the silence for the pauses, we could hear each other’s breathing and could almost bear our own heartbeats. 　

　 A. In　　　　　　 B. For　　　　　　 C. Under　　　　　　 D. Between