1. we (to attend) that conference in st. louis next month. 2. he (to go) in for sports once a week. 3. he (to be) at the meeting yesterday. 4. i (not to wait) for you next time. 5. they (not to require) our help last tuesday. 6. you (to know) the name of this girl? 7. there (to be) thousands of people outside during the last festival. 8. the scientists say that the world (to grow) cold in 200 years. 9. she (to want) to graduate from the university and to become a well-paid lawyer. 10. they (not to realize) their mistake even when the accident happened. 11. my friend always (to pass) his examinations well. 12. your parents (to be) proud of you when you show good results? 13. there (to be) an important meeting here next thursday evening. 14. when they (to be) young they (to introduce) different methods of teaching foreign languages. 15. why you (not to come) to see us last weekends?

1.He spent last summer in the country.

2.. He didn't spend last summer in thecountry.

3. Did he spend last summer in the country.?

4. Where did he spend last summer?

5. She helped mother yesterday.

6. She did not help mother yesterday.

7. Did she help mother yesterday?

8. How did she help mother yesterday?

9. Kate cooks dinner every day.

10. Kate will cook dinner tomorrow.

11. Kate is cooking dinner now.

12. Kate cooked dinner yesterday.

13. I don't eat ice-cream every day.

14. I am not eating ice-cream now.

15. I will not eat ice-cream tomorrow.

16. I did not eat ice-cream yesterday.

17. Do you go to school every day?

18. Are you going to school now?

19. Will you go to the South next summer?

20. You went abroad last summer.

21.What does your brother do every day?

22. What is your brother doing now?

23. What will your brother do tomorrow?

24. What did your brother do yesterday?

Комната, которую я занимаю, – просторная, светлая. Окна занавешены белоснежным тюлем в обрамлении портьер светлого коричневого оттенка. Обои, желтые с оранжевым, напоминают свет солнца, что всегда хорошему настроению. Мебели – минимум. В левом углу – письменный стол, а возле него – комод. Шкаф и софа – справа, а возле двери стоит пуфик. Стены увешаны разнообразными фото. На одних запечатлены собственные путешествия и походы, на других – достопримечательности городов русских, попавшие в объектив моего фотоаппарата. Красочные снимки рассказывают о спусках по рекам Карелии: потрясающие закаты и восходы, и пенные потоки, и радостные лица друзей у костра. Все фото, как музейные экспозиции, время от времени обновляю. Для того чтобы друзьям было интересно бывать у меня, да и самому разнообразить жизнь. Знакомые называют визиты ко мне экскурсиями. А мне очень приятно их проводить.(вот)

1) You have mistaken me for (потому что mistake somebody for) someone else. I don't know your sister, I am not her friend. (Present Perfect здесь нужен для описания недавнего действия, связанного с текущей ситуацией)

2) I think my parents have lent money to somebody. (нет указания на точный момент в , когда произошло  действие, поэтому используем перфект)

3) Did  you see Jane last Friday? (last Friday - маркер Past Simple)

4) Have you bought a new flat this month? (this month/week/year - маркер Present Perfect)

5) I have read six books this week.

6) Throughout the town, church bells rang and fireworks lit the sky. (Past Simple используется здесь для передачи последовательности действий в . Нет связи с настоящим)

7) My paycheck has risen by 50% since last year. (речь о результате/ изменении в оплате, произошедшем с момента в к моменту речи)