-Why does the lake smell terrible?
-Because large quantities of water .
A.is being polluted | B.have been polluted |
C.is polluted | D.has been polluted |
—Do you think George has passed the driving test?
—No. If so, he ________ his car to our college yesterday.
A.would drive | B.drove |
C.would have driven | D.had driven |
(2013·全国Ⅱ,6)Since nobody gave him any help, he ________ have done the research on his own.
A.can | B.must |
C.would | D.need |
—You needn't take an umbrella.It isn't going to rain.
—Well, I don't know.It ________ do.
A.might | B.need |
C.would | D.should |
When I was a child, I ________ watch TV whenever I wanted to.
A.should | B.could |
C.must | D.need |
I should not have laughed if I ________ you were serious.
A.thought | B.would think |
C.had thought | D.have thought |