Помогите, дам 50 баллов!!!
2. became 3. arrive 4. was not 5. has disappeared 6. knew 7. could 8. be 9. looked 10. came 11. had 12. raised 13. replied 14. thank 15. are doing 16. have never had 17. doubt 18. saw 19. read 20. met
4 not be 5 disappear 6 know 7 can 8 was 9 look 10 came 11 have 12 raise 13 reply 14 thank 15 was 16 never have 17 doubt 18 saw read