3、
21.The doctors _ _ _ _ _ _ _ the medicines to the people in the flood area.
A. distributed B.packed C.prayed D.undertook
22.Much of the news provided by this newspaper is _ _ _ _ _ _ _ , not foreign.
A. domestic B.strain C.purchase D.murder
23.He tried to _ _ _ _ _ _ _ relations with his former wife but he failed.
A. measure B.maintain C.shelter D.reply
24.He _ _ _ _ _ _ _ to study harder in the future so that he could have more opportunities to find a better job.
A. resolved B.resorted C.requested D.reserved
25.The _ _ _ _ _ _ _ work continued for more than a week but there was still no sign of the missing boy.
A. research B.rescue C.vessel D.vast
26.Many kinds of animals are believed to have _ _ _ _ _ _ _ _ _ from the earth
A. withdrawn B.vanished C.found D.hung
27.The engineers in this lab spent several weeks _ _ _ _ _ _ _ their plans for the new bicycle.
A. counting B.stripping C.elaborating D.casting
28.Pine trees are usually believed to _ _ _ _ _ _ _ cold weather.
A. guard B.accomplish C.roar D.endure
29.Free medical service is _ _ _ _ _ _ _ to nearly all the college students in
A. favorite B.available C.convenient D.average
30.After working for twenty hours without any rest, the doctors were _ _ _ _ _ _ _ .
A. exhausted B.mounted C.wrapped D.restored