558
.
1. must have sold his piano.
2. He may have sold his piano.
3. He might have sold his piano.
4. He can't have sold his piano.
5. He should have sold his piano.
6. He shouldn't have sold his piano.
7. He needn't have sold his piano.
8. He didn't have to sell his piano.
9. He had to sell his piano. 10. He was to sell his piano.
559
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560
(must, can, need).
1. I... not believe. I failed another test. But you... go to more classes and fewer parties. 2. Perhaps we... meet next week. 3.... he speak English in childhood? 4. My neighbours... grow their own vegetables. 5.... you turn the music down, please. 6. I... not believe. I am already out of money. You... learn not to spend so much. But I... not help it, there are just things that I... to buy. 7. If you want to improve your English, you... work very hard. 8.... I take this book? Certainly, but you... not give it to anybody. 9. Mother,... I go to the country tomorrow? No, you... not. The doctor says you... stay at home for a day or two. 10. There is something wrong with your television set. You... call a repairman. Oh, we... not do it! My brother... fix it himself. 11.... we bring these textbooks every day? No, you... not: you... take them from the library. 12.... you go to the country with us? No, I am afraid I... not: I... go to the library.
561
(must, may, can, need, to have to, to be able to).
1. You... not come to help them tomorrow: the work is done. 2. You... not change the whole text as the beginning is all right. You... only rewrite the second part of it. 3.... you help me now? I am afraid not: I am in a great hurry. I shall be free in the evening. Come to my place at about eight, and I... help you. 4. John... not tell us the rules of the game: we know them. 5.... I return the book to you on Friday? I am afraid I... not finish it before.
448 .
No, that is too late. You... bring it to me not later than Wednesday. 6. It is already six o'clock. We... hurry if we don't want to be late. 7.... you translate this text into English? I think I.... 8. They spent all the morning on the river bank. Only Ann... return home as she... not stay in the sun for such a long time. 9. How do you feel when you... take a test? I'm always a little frightened and unhappy. 10. She... decorate a room nicely. 11. We... not afford to pay the bill. 12. He's got a lung problem and he... go to hospital every two weeks. 13. Ann... not go to his birthday party yesterday because she... go to the dentist. 14. You... take medicine three times a day before meals. You... not stop taking it until you have finished the bottle. Don't forget. You... drink water as much as you.... You... get up tomorrow if you like. You... not stay in bed all the time. But you... not do any work at all. You... just relax for a few days.
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562
, (can, may, needn't).
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563
, (can, can't, may, must, needn't, shouldn't).
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564
, (can, can't, may, must, to have to, to be able to),
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450 .
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1) , .
2) , Active Voice Passive Voice.
3) .
4) ing-, , .
5) ing-, , .
Terrorism (to be)... global problem for... airlines for... decades. However, although... security at... airports always (to be) tight,... 9/11 attacks (to make) it clear that... new measures (to be) necessary. As... result, many new security procedures (to put) into... place.... good rule (to be) to
plan ahead and and prepare for... strictest security policies. Common sense and wise planning (to be)... keys to... successful trip.
One of... most important security measures at... airport (to be) confirming... identity of... travellers. This (to do) by checking... photo ID, such as... driver's license. If you (to travel) internationally, you (Modal V.) to present your... passport. Simply taking... look at... photo ID (not to be) enough, however.... high-tech buzzword in... airport security today is... biometrics.... biometrics essentially, (to mean) checking... fingerprints,... retinal scans, and... facial patterns using... complex computer systems to determine, if someone (to be) who they (to say) they (to be) or if they match... list of... people... government (to determine) (Modal V.) be... potential terrorists.
Here (to be)... few notes and tips to keep in... mind for passing carry-on security screening:
1) Check with your... air carrier for... specific check-in times if you (to be)... carry-on traveller. Remember screening... lines (to be) longer during... peak travel time and... Holidays.
2) Prepare for security screening, not just your... carry-on items but your... check-in luggage and your... person as well.
3) Be ready to answer any questions and do not accept items from... strangers. Keep your... luggage and... personal belongings with you at all time.
4) Any metal item (... buttons,... zippers,... hair accessories, etc.) (Modal V.) set off... metal detectors. You (Modal V.) minimize screening time by reducing... number of these... items on your... person.
5) You (Modal V.) carry... proper identity to indicate any medical metal.
6)... shoes (Modal V.) trigger... alarms. You (Modal V.) be asked to remove your... shoes.
452 .
7) Be prepared to open and activate... carry-on electronic items such as:... laptops,... cameras,... cell phones, etc.
8) Avoid... further delay by waiting to lock... carry-on luggage until you (to pass) through screening areas. Any wrapped packages (Modal V.) be searched, so wait to wrap any gifts or, if possible, pack such items in... check-in luggage.
9) Avoid... additional scrutiny by not carrying... prohibited items, such as all cutting and puncturing items,... flammable liquids and containers under pressure such as... aerosols,... matches and... lighters,... toy weapons, etc.
All rules and practices regarding security, canyons, and other airline/airport practices (to be) subject to change without notice, so it (to be) best to call your... airline or check with... airport just before... departure for... latest updates.
