Pen-friends are friends with whom you communicate only by means of writing letters. Your friend can be a very close person to you, but everything you know about him or her you get from his or her long letters which come by mail. Nowadays it's easier because we can use e-mail: it's much faster and gives you and opportunity to hear from your pen-friends more often.
Перевод:
1. He can draw well. 2. Can you fix my tape recorder? 3. Peter has to do it. 4. Do you have to get up every day at seven in the morning? 5. You can enter. 6. I had to make a report, but I fell ill. 7. You should wear a coat. 8. You do not need to go there, I was able to pick up the documents two hours ago. 9. We can dance well. 10. He has to go to work every morning at seven in the morning. 11. Can I come in? 12. You need to drink hot tea. Very cold.
1) Поскольку на этой железной дороге<span><span> используются поезда без машинистов</span>, для регулировки движения нужен лишь один сотрудник диспетчер.
2) Поскольку вокзалы и другие железнодорожные здания подвержены интенсивной вибрации и шуму, </span><span>при их строительстве </span><span><span>должны использоваться </span>прочные материалы</span><span><span> с хорошей звукоизоляцией</span>.
3) Поскольку информация о товарных поездах в сортировочном депо, обрабатывается компьютерами, эффективность сортировочных операций очень высока.
4) </span><span><span>Поскольку топливо сжигается внутри цилиндра, т</span>епловоз экономичен и не загрязняет окружающую среду.
5) Поскольку сейчас эксплуатируются порядка двухсот электричек, интервалы их движения в час пик составляют пять минут.</span>
2. Weren't it
3. Wasn't it
4. Isn't it
5. Aren't it
6. Were it
7. Is it
8. Weren't it
9. Isn't it
10. Were it
1. He can't have been late. He is always so punctual. 2. He can't have read this book so fast. It's too difficult for him. 3. She can't have forgotten about it. I reminded her about it yesterday. 4. Can you have forgotten that I've returned you the book? 5. Can anyone have thought this team to become the winner? 6. Can they have lost the game? 7. He couldn't have said that. 8. Could it have been so cold? 9. He can't be at home now. 10. Can he know Chinese so well? 11. Can he have refused to go there? 12. He can't have lost his documents. 13. They can't have left without saying good-bye to us.