30.A. find　　　　　　 B. think　　　　　　　　 C. look for　　　　　 D. search

29.A. why　　　　　　 B. what　　　　　　　　 C. because　　　　　 D. so

28.A.stories　　　　　　 B. pictures　　　　　　　 C. books　　　　　　 D. films

27.A. night　　　　　　 B. evening　　　　　　 C. morning　　　　　 D. day

26.A. working　　　　　 B. sleeping　　　　 　　C. sleep　　　　　　　 D. work

25.A.do　　　　　 B. did　　　　　 C. doing　　　　　 D. done

B

　 “Dreams may be more important than sleep. We all need to dream,” some scientists say.

　 Dreams take up about one quarter of our __26___ time. People have several dreams each _27____. Dreams are like short _28____. They are usually in color. Some dreams are like old films. They come to us over and over again. That may be _29____ the dreamer is worrying about something. Dreaming may be a way of trying to _30____ an answer.

　 Some people get new ideas about their work _31____ dreams. They may think about their work _32____ day. These ideas can carry over into dreams.

　 Sometimes we wake up with a good __33___ from a dream. But often we can’t remember the dream. Dreams can disappear quickly from memory.

　 Too much __34___ can be harmful. The more we sleep, __35___ we dream. The mind is hard at work when we dream. That’s why we may have a long sleep and still wake up tired.

24.A. for　　　　　 B. in　 　　　　　C. at　　　　　　 D. of

23.A. clean enough　 B. enough clean　 C. enough good　　 D. dirty enough

22.A. decide　　　 B. try　　　　　 C. fail　　　　　　 D. take

21.A. best　　　　 B. worse　　　　 C. worst　　　　　 D. better