21.-Can I try the jacket on?
- ,but I’m afraid it will be too big for you
A By all means B No way C Forget it D You’re welcome
22.It’s quite obvious that the aging population in
Whole society in the future
A a 不填 B 不填 ;不填 C the ; a Da ; the
23一Has Tom finished his job yet?
-I have no idea of it;lie it this morning.
A.did B.was doing C has been doing D.had been doing
24 How long do you suppose it is he arrived and began to work there'?
A when B before C.since D.after
25-The two astronauts had been trained for long before they flew to space.
-Oh,they quite a lot of difficulties
A might go through B may go through
C should have gone through D must have gone through
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