Решение:
- 1. Linda is busy now. She is doing her homework. (Present Continuous, так как действие происходит в данный момент).
- 2. Linda can help you now. She is free. She has done her homework. (Present Perfect, так как действие завершено и есть результат – она свободна).
- 3. Look! Jerry is washing his bike. (Present Continuous, так как действие происходит в данный момент).
- 4. Jerry has washed his bike. Now the bike is clean. (Present Perfect, так как действие завершено и есть результат – чистый велосипед).
- 5. I am cleaning my room now. (Present Continuous, так как действие происходит в данный момент).
- 6. I have cleaned my room, I can go with you. (Present Perfect, так как действие завершено и есть результат – комната убрана).
- 7. I have read the story. I think I can answer your questions about it. (Present Perfect, так как есть результат – прочитанная история, что позволяет ответить на вопросы).
- 8. I am reading the story now. We can discuss it later. (Present Continuous, так как действие происходит в данный момент).
- 9. Sally can't speak to you now. She is cooking lunch. (Present Continuous, так как действие происходит в данный момент).
- 10. She has cooked lunch. Will you lay the table? (Present Perfect, так как действие завершено и есть результат – обед готов).
Ответ: 1. is doing, 2. has done, 3. is washing, 4. has washed, 5. am cleaning, 6. have cleaned, 7. have read, 8. am reading, 9. is cooking, 10. has cooked