12. He is not at school today, he (to fall) ill. - When he (to fall) ill? - He (to fall) ill yesterday. 13. I already (to do) my homework. Now I can go for a walk. 14. I (to do) my homework yesterday. 15. He just (to come) home. 16. He (to come) home a minute ago. 17. Nick (to play) football yesterday. 18. She already (to come) from school. Now she is doing her homework. 19. I (to read) this book last year. 20. I (to read) this book this year. 21. I never (to be) to Washington. 22. You ever (to be) to New York? 23. I don't think you ever (to see) Niagara Falls. 24. I (to invite) Linda to the party. - When you (to see) her? - I (not to see) her for ages. I (to call) her an hour ago. надо написать в present perfect или past simple