17.A: Have you finished writing your annual report?
B: Not yet. __________________________
(A)I plan to finish it this week. (B)I need to do that every year.
(C)We don't know of any reports. (D)We can think of many more.
18.A: Why didn't you call me?
(A)The teacher called you.
(B)He really talked on the phone a lot.
(C)I did, but your line was busy for a long time.
(D)Please call me when you are free.
20.A: Excuse me. Do you speak English?
B: Yes, but not very well.
A: Can you direct me to Taipei station?
(A)Excuse me. (B)What did you say? (C)Please once more. (D)Pardon?
21.Why do we dream? Nobody knows, but everybody ______21______ . We dream during REM (rapid eye movement) sleep. In eight hours of sleep, people usually have four REM periods. But we ______22______ very little. We usually remember only 20 or 30 seconds of REM sleep.
There are many ideas about dreams. Some psychologists believe we dream because we need a safe way to do things we can't do where we're ______23______ . Some think we dream in order to work out our problems. ______24______ believe dreams don't have any special meaning. They are simply thoughts that come to us when we ______25______ . Whatever you believe, dreams prove one thing—some people have wonderful imaginations.
【題組】21 (A)understands (B)dreams (C)sleeps (D)does