A． required
B． inquired
C． achieved
D． acquired
17．If I am not _________ when you come to my office，ask for my secretary．
A． suitab1e
B． available
C． comfortable
D． proper
18．peasants supp1y workers with food， and workers________ supply peasants with manufactured goods．
A． in turn
B． by turn
C．for return
D．by return
19．Let’s go out during the break to_________ our legs。
A． stretch 中 华 考 试 网
B． expand
C． move
D． extend
20．I have just___________abeautiful poem in that little book.
A． come to
B． come through
C． come across
D． come up
16.D 17.B 18.A 19.A 20.C
