23.We have sometimes accidents on this line, but no accidents ______ since last winter.
a. occur  b. have occurred  
c. have been occurring  d. are occurring
24.He _____ on this essay for twenty minutes but he _____ only a hundred words.
a. has been working/has written  b. is working/writes
b. has worked/has been writing  d. works/is writing
25.Elections _______ every four years and Congress meets once a year.
a. are taken place  b. are to be taken place  
c. took place  d. take place
26.______ careless, or you will make mistakes.
a.Be not  b. Not be  c. Don’t  d. Don’t be
27.The No.8 bus ______ to Chengdu college of Geology, and not to Sichuan University.
a. are gone  b. is being gone  c. goes  d. are going
28.Oil, exported from Iran to Europe, _____ by tankers.
a. used to be transported/have been built up  
b. used to being transported/have built up
c. was used to be transported/had been built up
d. was used to being transported/will be built up
29.If it ______,the match will be postponed.
a. has been rained  b. does rain  c. rains  d. is rained
30.As soon as I ______ the tools, I shall begin with the work.
a. have  b. am having  c. have been having  d. have been had
31.Once you ______ the knack of it, you will have no further difficulty.
a. shall have b. had had  c. are having  d. have
32.Every time he ______ me, he is rude to me.
a. will see  b. sees  c. is seeing  d. is seen
33.John told Mary that he ______ what he was doing during the vacation.
a. was just asked  b. was just asking c. had just been asked  d. had just asked
34.Now that you _______ , what are you going to do?
a. are being returned  b. have been returning  
c. have been returned  d. have returned
35.I started my teaching career at the school. That was more than twenty years ago, and I ______ there ever since.
a. was  b. had been  c. will be  d. have been
36.Everything on the earth ______ all the time.
a. is changing  b. is changed  c. has changed  d. has been changed
37.We ______ fine weather for the past few days.
a. have  b. are having  c. have been had  d. have been having
38.It ______ every day so far this month.
a. is raining b. rains  c. has rained  d. has been rained
39.no one can prove that the earth ______ not round.
a. is being  b. is to be  c. is  d. has been
40.“There she ______!We needn’t wait any longer.”  
a. comes  b. has been come  c. has been coming  d. is to come
41.The little girl ______ by the drug-pusher to carry drugs into the country.
a. was made use  b. was made used  
c. was made use of  d. was made used of
42.I shall tell you what he ______ at three o’clock yesterday afternoon.
a. had done  b. would do  
c. was doing  d. had been done
43.By the end of last year they ______ 1,000 machines.
a. turned out  b. had turned out  
c. would turn out  d. had been turned out
44.He was sixty-eight. In two years he ______ seventy.
a. would be  b. was  c. had been  d. was being
45.How long ago ______ playing football?
a. had you stopped  b. would you stop c. did you stop  d. were you stopping
46.Up till then we ______ half the distance.
a. had only covered  b. covered  
c. would only cover  d. would be only covered
47.While I ______ television, the door bell ______.
a. watched/would ring  b. would watch/had rung  
b. was watching/rang  d. had been watched/was ringing
48.They ______ with us for the time being.
a. would stay b. will stay  
c. have been staying  d. will be staying
49.I never dreamed I ______ here discussing state affairs with the other deputies.
a. will be sitting  b. would be sitting  
c. will have been sitting  d. would have been sitting
50.John told us that by the end of the year they ______ together for thirty years.
a. would have been living  b. would have lived  
c. would have been lived  d. will have been living  
51.The new type of machine ______ the year after next.
a. is going to turn out  b. is going to being turned out
c. is going to have turned out  d. is going to be turned out  
52.Large sums of money ______ each year in painting the steelwork of bridges, ships, and other exposed structures.
a. have spent  b. have to be spent  c. have to spend  d. spend
53.The police ______ in what the informer reported.
a. interested  b. had interested  
c. were interesting  d. were interested
54.A candidate for the post ______ at the moment.
a. is interviewing  b. being interviewing
c. interviewing  d. is being interviewed
55.By the end of last year the railway ______.
a. was being completed  b. would be completed  
b. had been completed  d. had completed
56.I ______ to visit their country before long.
a. have been invited  b. am being invited  
c. had been invited  d. shall be invited
57.Theory ______ with practice.
a. must be combining  b. must combine  
c. must have been combined  d. must be combined
58.He said such a thing ______ to happen.
a. ought to be not allowed  b. ought not to be allowing
b. ought not to have allowed  d. ought not to be allowed
59.She told me that her proposal ______.
a. needed to take into consideration  
b. needed to be taken into consideration
c. needed to be taking into consideration  
d. needed to have taken into consideration
60.The school authorities and the teachers ______ over the advantages of the demerit system.
a. were always argued     b. were always arguing
c. had always had argued   d. had always been argued
61.He fulfilled the plan earlier than he ______.
a. had expected  b. expecting  
c. should expect  d. would expect
62.______ when the bell rang.
a. Hardly would he reach school  b. Hardly had he reached school
c. Hardly he reached school  d. Hardly he was reaching school
63.We were determined not to do it unless Julie ______ it, too.
a. had done  b. was doing  c. was done  d. did
64.They were sure they ______ final victory.
a. were won  b. would be won  c. would win  d. had been won
65.When ______ to give us an answer?
a. will you be able   b. will you have been able

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