题目内容
(请给出正确答案)
[主观题]
it is time that measures _________ to prevent such events.
A. taken
B.are taken
C. were taken
D. should be taken
答案
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A. taken
B.are taken
C. were taken
D. should be taken
第2题
B.On time
C.By the time
D.At the time
第4题
A.in the time
B.on the time
C.ahead of time
D.before time
第5题
A.by that time
B.by the time
C.by which time
D.by some time
第7题
A.had spoken
B.have spoken
C.am
D.was