It is a long time _______they separated, but it won’t be long ____ they meet again.
A.since; before | B.after; when | C.since; when | D.after; before |
Research findings show we spend about two hours dreaming every night, no matter what we ______ during the day.
A.should have done | B.would have done |
C.may have done | D.must have done |
-I went to work on foot yesterday, though it ______ cats and dogs.
-You ______ by bus. It was likely to get a cold.
A.is raining; must have gone | B.rained; would go |
C.was raining; should have gone | D.have rained; could have gone |
.-How about paying a visit to Mr. Richardson, our former history teacher?
-Good idea. I will e-mail him today so he ______ know ______ to expect us.
A.shall; why | B.may; when | C.would; why | D.will; how |
.-We need a person badly to think up such an idea.
-______ the new comer have a try?
A.Shall | B.May | C.Should | D.Need |
To be on the safe side, we should fill up the tank now, because we ______ run out of gas on the way.
A.can | B.would | C.might | D.should |