英语22,

英语22,
6.Scientists say it may be five or ten years ____ it is possible to test this medicine on human patients
A.before
B.since
C.after
D.when
满分：4 分
17.You can not be ___ grateful to him; in fact,you should owe your success to him
A.so
B.very
C.too
D.least
满分：4 分
18.When she wants to go out,he wants to stay in,and _____
A.instead of
B.vice versa
C.in turn
D.in brief
满分：4 分
19.We all know that he _____ get angry when people disagree with him
A.devotes to
B.submits to
C.attends to
D.tends to
满分：4 分
20.At no time ____ the first one to use nuclear weapons
A.China will be
B.will China be
C.China won’t be
D.won’t China be
满分：4 分
21.We can not ____ him of having done wrong in the matter
A.convince
B.convert
C.confront
D.compose
满分：4 分
22.It is a long and bitter struggle,but the victory is worth the ____
A.estimate
B.sacrifice
C.discount
D.influence
满分：4 分
23.You can not stand around waiting for someone else to ____ the initiative
A.take
B.make
C.consult
D.trigger
满分：4 分
24.Arguing about details ____ many hours of the committee’s valuable time
A.resumed
B.consumed
C.presumed
D.assumed
满分：4 分
25.The army has __ grain.They are in a very difficult situation
A.run over
B.run down
C.run into
D.run out of
满分：4 分