1.This has probably been the case (in) quite a while. in----for 2.Perhaps one in every (seventh) seventh----seven 3.deaths in Europe's crowded cities (were) caused were----was 4.From （now） on now----then 5.infection in (the) Europe and America dropped the去掉 6.to be (imported )to poor countries imported----exported 7.They (are) wrong are----were 8.Where (tuberculosis vanished), tuberculosis vanished----tuberculosis had vanished 9.it grew (better) better----worse 10.more or less (contantly )at 8 million contantly----contant 1. I will make sure that everything ______ (be) in order. 2. When summer comes, the weather ______ (get) hotter and hotter. 3. It is reported that by the end of this month, the output of steel in the factory ______ (rise) by about 10%. 4. I ________ (mean) to call on you, but was prevented from doing so. 5. Leave a note for them on the table and they ______ (see) it when they come in. 6. – I’m sorry that John is out. – Please ask him to call me as soon as he __________ (return). 7. When our English teacher arrived, I ______ (discuss) the Pride and Prejudice with Jane. 8. He acted as if he ______ (know) English very well. 9. Mr. Smith will not be able to attend the meeting tonight because he ______ (teach) a class then. 10. – Hi, Tracy, you look pale. – I am tired. I ______ (paint) the living room all day. 1.will be 2.gets 3.was rose 4.meant 5.saw 6.return 7.was discussing 8.knows 9.will teach 10.am painting 1. Turn left and you ______ (find) a tall building in front of you. 2. This time next week, we ______ (fly) over the Atlantic Ocean. 3. I dislike Bill’s dishonesty. He ______ (always tell) lies. 4. When and where to go for the on-salary holiday______ (not decide) yet. 5. By the end of last year, another new gymnasium ______ (complete) in our university. 6. Chairman Mao said pride ______ (go) before a fall. 7. When my father arrived, I ______ (discuss) the Gone with the Wind with my mother. 8. Jack is 80 years old, but he often walks as if he ______ (is) a young man. 本文来源：https://www.wddqw.com/doc/7274f227162ded630b1c59eef8c75fbfc67d94d1.html