Mixed tenses PRESENT SIMPLE/PRESENT CONTINUOUS/PAST SIMPLE/FUTURE SIMPLE 1. I _______ (go) to school every day. 2. Right now, I _______ (do) my homework. 3. Last Saturday, we _______ (visit) the zoo. 4. Tomorrow, she _______ (meet) her friends at the park. 5. My brother _______ (play) football every weekend. 6. Look! They _______ (run) in the park right now. 7. We _______ (not/like) vegetables, but we _______ (eat) them sometimes. 8. Last summer, my family _______ (travel) to Italy. 9. She _______ (study) for her exam next week. 10. I _______ (not/understand) this lesson at the moment. 11. We _______ (have) a party next Friday. 12. He _______ (watch) a movie right now. 13. I _______ (not/go) to the gym yesterday. 14. They _______ (clean) the house every Saturday. 15. She _______ (make) a cake for her birthday next month. 16. We _______ (not/meet) him last night, but we _______ (meet) him tomorrow. 17. I _______ (not/know) the answer to this question at the moment. 18. We _______ (plan) to go on a trip next summer.

Решение:

1. I go to school every day. (Present Simple для регулярных действий)
2. Right now, I am doing my homework. (Present Continuous для действия, происходящего в данный момент)
3. Last Saturday, we visited the zoo. (Past Simple для завершенного действия в прошлом)
4. Tomorrow, she will meet her friends at the park. (Future Simple для предсказания или обещания в будущем)
5. My brother plays football every weekend. (Present Simple для регулярных действий)
6. Look! They are running in the park right now. (Present Continuous для действия, происходящего в данный момент)
7. We do not like vegetables, but we eat them sometimes. (Present Simple для выражения предпочтений и регулярных действий)
8. Last summer, my family traveled to Italy. (Past Simple для завершенного действия в прошлом)
9. She will study for her exam next week. (Future Simple для предсказания будущего действия)
10. I do not understand this lesson at the moment. (Present Continuous для действия, происходящего в данный момент, с отрицанием)
11. We will have a party next Friday. (Future Simple для планирования или предсказания в будущем)
12. He is watching a movie right now. (Present Continuous для действия, происходящего в данный момент)
13. I did not go to the gym yesterday. (Past Simple для отрицательного действия в прошлом)
14. They clean the house every Saturday. (Present Simple для регулярных действий)
15. She will make a cake for her birthday next month. (Future Simple для действия в будущем)
16. We did not meet him last night, but we will meet him tomorrow. (Past Simple для отрицательного действия в прошлом и Future Simple для действия в будущем)
17. I do not know the answer to this question at the moment. (Present Continuous для действия, происходящего в данный момент, с отрицанием)
18. We are planning to go on a trip next summer. (Present Continuous для планов на будущее)

Ответ: 1. go; 2. am doing; 3. visited; 4. will meet; 5. plays; 6. are running; 7. do not like, eat; 8. traveled; 9. will study; 10. do not understand; 11. will have; 12. is watching; 13. did not go; 14. clean; 15. will make; 16. did not meet, will meet; 17. do not know; 18. are planning.