Module 4 : Language Practice Exercises: Verb Forms and Conditional Sentences

MODEL 4 A. Using must have, complete each of these sentences in your own words. 1. They do not answer their phone; they (Example: They do not answer their phone; they must have gone away on their vacation.) must have misplaced itmust have misplaced it 2. Ican't fined my notebook; I....................... must have studied hard 3. William got very good marks on his examinations; he...................................... must have done some research 4. They seem to know a lot about Latin America; they................. must have practiced a lot 5. He speaks English very well; he.............. must have taken it by mistake 6. My umbrella has suddenly disappeared; Helen................................ must have had a falling out 7. He and Helen are not friends any more; they................................ must have had other plans 8. John didn't attend the meeting last night; he.................................. must have rained recently 9. The streets are all wet; it......................... must have been involved 10. The robbery was carried out perfectly; someone in the company..................... B. Answer each of the following questions using may have. Add I'm not sure at the end of your answer. 1. Did John bring his car to school today? (John may have brought his car to school today I'm not sure.) 2. Did Professor Smith learn Spanish in South America? Professor Smith may have learned Spanish in South America. I'm not sure. 3. Did Helen call while I was out? Helen may have called while I was out. I'm not sure. 4. Was Mr. Reese born in this country or Europe? Mr. Reese may have been born in this country or Europe. I'm not sure. C. Supply may have in the following sentences. have taken 1. She............................. (take) the book by mistake. have telephoned (telephone) while you were out. 2. They...................... may have lost have left 3.I............................ (leave) my keys at home or I............................... (lose) them somewhere. I'm not sure. may have been 4. They........................... (be) wealthy at one time, but I doubt it. may have been stolen 5. They think now that the jewels........................ (steal) by one of the servants. may have delayed (delay) the plane. 6. The storm........................ may have been (be) John or It....................... may have been (be) Mary who : told them about it....................... 7. It....................... may have gone(go) home. 8. I don't know where Helen is she........................ D. Change to the causative form with have. 1. I cut my hair once a month. (I have my hair cut once a month.) 2. We must paint our house soon. We must have our house painted soon. 3. I should shine my shoes. I should have my shoes shined. 4. I expect to repair my radio soon. I expect to have my radio repaired soon. 5. I mailed those letters yesterday. I had those letters mailed yesterday. 6. My wife cleaned my clothes. My wife had my clothes cleaned. 7. I have pressed my suit. I have had my suit pressed. 8. You ought to check the motor in your car before starting your trip. You ought to have the motor in your car checked before starting your trip. 9. I must sole my shoes and I must cut my hair. I must have my shoes soled and I must have my hair cut. 10. She is going to manicure her nails. She is going to have her nails manicured. 11. I must repair my watch. I must have my watch repaired.