If we throw away too much waste and can’t keep good ecosystem,we _________ our f

If we throw away too much waste and can’t keep good ecosystem,we _________ our f

题型:不详难度:来源:
If we throw away too much waste and can’t keep good ecosystem,we _________ our future.
A.must have destroyedB.could be destroying 
C.may be destroyingD.must destroy 

答案
C
解析
must have destroyed表示对过去确有把握的推测。could be destroying表推测时常用于否定句和疑问句。may be destroying表示可能性,可能我们正在毁灭我们的未来。must destroy一定是,表示确有把握。从题意来看本题的最佳选项是C。
举一反三
.How I wish every family _________ a large house with a beautiful garden.
A.hasB.will haveC.hadD.had had

题型:不详难度:| 查看答案
—Is the man our sales-manager?
—No,it _________ not be him.He never plays cards.
A.mustB.canC.willD.may

题型:不详难度:| 查看答案
—_________ he start at once or wait for a while?
—Let him start at once.
A.WillB.WouldC.DoesD.Shall

题型:不详难度:| 查看答案
—There is a lot of smoke coming out of the teaching-building there.
—Really?It _________ be a fire,most probably.
A.canB.ought toC.have toD.must

题型:不详难度:| 查看答案
The police have said that this situation _________ as soon as possible.
A.must put an endB.should be put an end
C.must be put an end toD.should put an end to

题型:不详难度:| 查看答案
最新试题
热门考点

超级试练试题库

© 2017-2019 超级试练试题库,All Rights Reserved.