More and more people have come to realize that if we had taken effective measure
题型:不详难度:来源:
More and more people have come to realize that if we had taken effective measures much earlier, the air quality ______ so seriously now. A.is not polluted | B.would not be polluted | C.had not been polluted | D.would not have been polluted |
|
答案
B |
解析
试题分析:句意, 越来越多的人意识到如果我们早点采取有效地措施,现在空气污染就不会这么严重了。If条件从句是对过去的虚拟,故用过去完成时,而主句是对现在的虚拟,故用would do形式。 点评:所谓错综时间条件句即条件从句与主句所指时间不一致,如从句指过去,而主句即指的是现在或将来,此时应根据具体的语境情况,主、从句动词的形式应根据各自所表示的时间进行调整。 |
举一反三
The board considered it urgent that those files _____ right away.A.be printed | B.will be printed | C.must be printed | D.had to be printed |
|
--Excuse me, you are supposed to hand in your design now. --I’m sorry, my computer broke down, or I ________ it last night.A.finished | B.would finish | C.had finished | D.would have finished |
|
How lucky he was! He ____ involved in the murder.A.must have been | B.can have been | C.could have been | D.would have been |
|
Lily, my partner, is usually friendly to others, but she___ get into bad temper sometimes. |
In this company, it is required that anyone who ______ recently come here _____ this kind of test.A.has; has | B.has; have | C.have; have | D.have; has |
|
最新试题
热门考点