10. You should send this letter before Sunday. This letter ……..……..……..……..……..……..……..……..……..……. 11. She started to learn English 4 years ago. She has ……..……..……..……..……..……..……..……..……..…….. 12. How long have you worked here? When did ……..……..……..……..……..……..……..……..……..…….. 13. He no longer stays up late. He used ……..……..……..……..……..……..……..……..……..…….. 14. The water isn’t clean. We wish ……..……..……..……..……..……..……..……..……..…….. 15. I often get up early. I am used ……..……..……..……..……..……..……..……..……..…….. 16. “My mother is going to buy me a new bike”, said the boy. The boy said ……..……..……..……..……..……..……..……..……..… 17. The teacher corrects our exercises at home. Our exercises ……..……..……..……..……..……..……..……..…….. 18. You must send this parcel by airmail. This parcel ……..……..……..……..……..……..……..……..……..… 19. “Read the questions carefully”, the teacher told the students. The teacher ……..……..……..……..……..……..……..……..……..…