【正文】 it must be drycleaned.10. A different attitude will have to be adopted. 11. /12. The bag is to be left …13. He will be sent to school …14. Bicycles must not be left …15. These engines used to be started … 16. /17. The wall is going to be painted green.18. You will be asked … 19. /20. He was told never to e …21. He was proved wrong.22. Those books should have been taken back.23. It may have been left … 24. /25. This letter need not be typed.26. Mary seems to be liked very much by John.27. She happened to be met in the street by the boy. 28. / 29. / 30. / Ex. 14B1. Who was it written by?2. Has my parcel been posted?3. My attention was held by …4. Your record has never been equalled.5. Why wasn’t I informed of the change …?6. A lot of time is wasted …7. The books had to be taken back。 have done, learnt10. Have … been。 haven’t got, have been trying, has been2. have been playing, haven’t played3. have been writing / have written4. have … been learning / have … learned5. has been sleeping /has slept6. has been coughing / has coughed7. have known, have been reading, haven’t finished8. have been, have … e9. has been learning, has mastered10. has been raining, has stopped11. have travelled12. Have … read13. have been reading14. have read15. has let16. has been crying17. has injured18. has been assassinated19. have been working20. has been losingEx. 12B1. YES , NO , NO , NO, NO , YES, YES , NO Ex. 12CI. (1)struck (2)reached (3)lit (4)sat (5)had left (6)had had (7)put (8)undressed (9)got (10)fell (11)had put (12)had forgotten (13)dropped (14)burned (15)found (16)had burned (17)had … madeII. (1)opened (2)saw (3)had … been listening (4)wondered (5)had heard (6)asked (7)had been doing / was doing (8)said (9)had dropped (10)had been looking (11)didn’t see (12)found (13)had … dropped (14)opened (15)had been taking (16)were (17)turned (18)asked (19)pulled (20)ran (21)recovered (22)had disappeared (23)moved (24)found (25)had been standing (26)had been tellingEx. 12D1. I met George after he had heard …2. I met George before he had heard …3. We reached the football ground before the game had started.4. We reached the football ground after the game had started.5. As soon as we arrived at the station, we bought …6. For several years after Dick (had) left school, he worked …7. After she’d cleaned … she had …8. When we arrived, they’d laid …9. He’d done all his work by the time he went …10. The secretary had typed … by the time I came …11. I’d only been there … when John walked in.12. He’d answered … before he got a job.13. They left before I’d explained …14. We managed … before the concert had started.15. She didn’t notice it until he’d pointed it out.16. I’d no sooner taken off … than it began …17. I’d no sooner put … than I realized …18. He didn’t understand until I’d explained.19. He came in before I’d done …20. We got to the hall after the concert had started. We didn’t get to the hall until after the concert had started. The concert (had) started before we got to the hall.Ex. 12E1. went 2. was / were ’t said ’t drunk, hadn’t drunk expected, had intended ’t lost ’t told /had known e meant wanted ’t ’t been never seen given seen asked ’t broken never been inventedEx. 12F’t got to you got ’t got to got to got to ’t got to got got got to ’t got to 11./ got 13./ ’t got to … have we 15. have got 16./ 17./ got to 19./ 20./Ex. 12G1. have explained2. have had3. drank, drove, got, gave, has been breathalysed4. was, had visited5. had tried6. will be, have had to7. are going to stay, will be, haven’t been8. will be, have taught。 was doing 10. Did…want。 woke 6. was drowning, dived, saved 7. was listening, rang, did not hear 8. exploded, was landing, climbed。 was。 is blowing Ex. 11E 1. arrived, was telephoning 2. arrived, telephoned 3. did…do。 is running。 is lying。 hits, bounces。 passes, kicks。 keeps, begins, hear, shakes 15. smell。 Ex. 5C1. …Dick’s decision to emigrate to Australia.2. the expansion of the Physics Department / The Physics Department’s expansion…3. …a novel of Jane Austen’s.4. That long report of Mr Allen’s…5. Those new shoes of yours…6. …the article of the student…7. …Shakespeare’s tragedies / the tragedies of Shakespeare8. …a ship’s carpenter.9. The punishment of the offenders…10. …the past decade’s events / the events of the past decade11. …the enemy’s unconditional surrender / the unconditional surrender of the enemy.12. …other people’s criticism of him.13. …the younger generation’s education / the education of the younger generation.14. …at John Wiley’s, the bookseller’s.15. …an article of T. Johns’…16. …this policy of the government’s…?17. …an idiot’s tale.18. That dog of Frank’s…19. This book of Joe Hill’s…20. Jane’s letter…Ex. 5D1. The leg of the table is broken.2. Mary and John’s house is on the corner.3. …on birs’s nests.4. …the students’ problems.5. …at the Joneses’.6. /7. …Charles’ car but someone else’s.8. …in ten years’ time.9. The products’ effectiveness…10. This week’s news… than the last two weeks’.11. …others’ problems.12. …each other’s worries.13. My brother and sisterinlaw’s house…14. A friend of my father’s…15. A wheel of the car…16. /17. The baseball player’ wives…18. …women’s clothing only.19. …Milton’s long poems.20. Those new shoes of yours…Ex. 9B1. theirs，ours 2. its, it’s 3. of his 4. The professor himself 5. for herself 6. beside ourselves 7. conducts him