В некоторых пунктах я добавил второй вариант ответа, т. к. не уверен в их правильности из-за недостка информации в предложениях. (отметил их скобочками)
1. were; would leave
2. lived; would visit
3. get; will go
4. lived; would gather
5. returned; would watch
6. knew (have known); would try (would have tried)?
7. came; would be
8. buys (bought); will have (would have)?
9. receive (received); won't worry (wouldn't worry)?
10. don't work; will fail
11. snows; will go
12. phones; talk
13. would have driven; had asked
14. would have helped (would help); hadn't been (wasn't)
15. wouldn't be; arrived
16. didn't change; would take
17. will write; get
18. didn't buy; wouldn't make
19. listened; would understand
20. would have found (would find); had looked (looked)?
Объяснение:
Present Simple
1. I learn English at school. - Я учу английский язык в школе.
2. I get up at 7 o'clock every morning. - Я встаю в 7 часов каждое утро.
3. My dad goes to work by car. - Мой папа ездит на работу на машине.
4. I have lunch at 2 o'clock. - Я обедаю в 2 часа.
5. I play with my classmates every day. - Я играю с одноклассниками каждый день.
Present Continuous
1. I am doing my homework now. - Я сейчас делаю домашнее задание.
2. My sister is playing with her friend. - Моя сестра играет с подружкой.
3. My mum is watching TV. - Моя мама смотрит телевизор.
4. My baby brother is sleeping. - Мой маленький братик спит.
5. It is raining now. - Сейчас идёт дождь.