19.I know Mr Brown； we ＿＿＿＿＿＿ to each other at an international conference.
A.are introduced B.have been introduced
C.were introduced D.had been introduced
20.——Where do you think＿＿＿＿＿he＿＿＿＿the computer?
—— Sorry.I have no idea.
A.has ； bought B.／ ； bought
C.did ； buy D.had ； bought
21.—— I＿＿＿＿to a party, but I’ ve got nothing to wear.
—— Why don’t you have a dress made for the party?
A.was asked B.will ask
C.have asked D.have been asked
22.I didn’t like Aunt Lucy, who＿＿＿＿＿＿without warning and bringing us presents.
A.always turned up B.has always turned up
C.was always turning up D.was always turned up
23.—— What do you think of this kind of TV set,which ＿＿＿＿＿＿ in Shanghai?
—— Well, I don’ t care such things.
A.was made B.is made
C.has been made D.had been made
24.—— Tom, did Mr.Li join you in your dicussion?
—— No, he＿＿＿＿, but he happened to have fallen ill.
A.would like to B.will
C.was to have D.was going to join
25.—— Did he notice you enter the room?
—— I don’ t think so.He＿＿＿＿＿to the radio with his eyes shut.
A.listened B.was listening
C.has listened D.had listened
26.The plane ＿＿＿＿＿ at 7：00 p.m., so I have to be at the airport by 6：40 at the latest.
A.has left B.is to leave
C.will have left D.leaves
27.The train ＿＿＿＿＿ at the present speed until it reaches the foot of the mountain at about nine o’clock tonight.
A.went B.is going C.goes D.will be going
28.Look at this ! I＿＿＿＿＿some magazines and＿＿＿＿＿＿this letter.
A.was looking through； found
B.am looking through； find
C.looked through； had found
D.had looked through； finding
29.—— ＿＿＿＿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
30.—— Can you give me the right answer?
—— Sorry, I＿＿＿＿.Would you repeat that question?
A.hadn’t listened B.haven’t listened
C.don’t listen D.wasn’t listening
31.I used to drink a lot of tea but these days I ＿＿＿coffee.
A.prefer B.preferred
C.have preferred D.am preferring
32.—— Was the driving pleasant when you went to Mexico last summer?
—— No, it ＿＿＿＿ for four days when we arrived, so the roads were very muddy.
A.was raining B.had been raining
C.would be raining D.rained
33.The vegetables didn’t taste very good.They＿＿＿＿too long.
A.had been cooked B.were cooked
C.had cooked D.cooked
34.—— Remember the first time we met, Jim?
—— Of course I do.You ＿＿＿＿＿ in the library.
A.were reading B.had read
C.have read D.read
35.I want to buy that kind of cloth because I ＿＿＿＿＿ the cloth ＿＿＿＿ well.
A.have told； washes B.have been told； washes
C.was told； washed D.have been told； is washed
36.—— What were you up to when your parents came in?
