In this experiment, they are woken up several times during the night, and asked to report what they＿＿＿＿.

A.had just been dreaming B.are just dreaming

C.have just been dreaming D.had just dreamt

—— ＿＿＿＿you ＿＿＿＿ the editor at the airport?

—— No, he ＿＿＿＿ away before my arrival.

A.Have...met； has driven

B.Had...met； was driven

C.Did...meet； had been driven

D.Have...met； had driven

I’ve finally finished my paper and it ＿＿＿＿＿ me an entire month.

A.takes B.took C.was taken D.had taken

--How long ___________ each other before they__________ married?

--For about a year.

A. have they known;get

B. did they know; were going to get

C. do they know;are going to get

D. had they known; got

Isn't it very kind __________ your parents to do that for us?

A. for          B to            C. about          D. of

Let us not waste____________ time we have left.

A. the little       B. little    C. a little    D. a little more

This coat will lose its color ___________ it's washed.

A. as       B. after              C. until        D. while

--Well done, Jack !

--Thanks. But given more time, I__________ it better.

A. shouldn't have done              B. could have done

C. might not do                     D. could do

Whether ways will be found to stop pollution or not is just___________ worries the public.

A. why            B. which           C. that          D. what

In such dry weather, the flowers will have to be watered if they ____________

A. have survived           B. are to survive    

C. would survive           D. will survive