Add the Tag – question to complete the following sentences 1. They don’t walk regularly,do they? 2. Ngoc hasn’t finished her study in England,………………………………? 3. Quan asked you how to get to the post office,……………………………..? 4. Your classmates are going to have a picnic,………………………………..? 5. I have to come there at 5p.m.,………………………..? 6. We must all work very hard,………………………………? 7. Mr. Smith has kindly provided a picnic lunch for us,……………………………? 8. He was a pilot, ……………………….? 9. They disappeared too long,……………………….? 10. He shouldn’t play video games too much,…………………………? 11. You aren’t at home now,……………………..? 12. There are rivers and lakes on the moon,………………………….? 13. Hoa and Ha have to look after these children,………………………..? 14. Nam had to buy some match boxes,………………………..? 15. Hanh is preparing for her next examination,………………………..? 16. The weather’s very sunny today,…………………………? 17. There isn’t any buses in this street,………………………..? 18. Mary likes watching TV,…………………………….? 19. We haven’t met since we left school,………………………….?