The fleet made several expeditions _______ the exploration was stopped.A.whenB.b

The fleet made several expeditions _______ the exploration was stopped.A.whenB.b

题型:不详难度:来源:
The fleet made several expeditions _______ the exploration was stopped.
A.whenB.beforeC.whileD.since

答案
B
解析
考查连词,A. when当…时候,B. before在…之前,翻译时可以做为:…才, C. while当…时候,然而D. since自从,句意是:船队进行了几次短途旅行之后,探险才结束。选B。
举一反三
_____________ well prepared you are, you still need a lot of luck in mountain climbing.
A.HoweverB.WhateverC.No matterD.Although

题型:不详难度:| 查看答案
It was in the Xichang Satellite Launch Center , ________ I had visited, ________ Chang’eⅠwas launched at about 6:05 pm October 24, 2007.
A.where; thatB.which; thatC.that; whereD.which; where

题型:不详难度:| 查看答案
The professor, _____ some of his assistants, _____ to attend our discussion this afternoon.
A.and; isB.as well as; isC.or; areD.except for; are

题型:不详难度:| 查看答案
It will not be     he returns from abroad.
A.before longB.long beforeC.after longD.long after

题型:不详难度:| 查看答案
It is so difficult a question_______ none of the kids could work it out.
A.asB.that C.whichD.X

题型:不详难度:| 查看答案
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