Chọn đáp án và chỉ em cách giải thích với ạ em cảm ơn ạ 11. Lan watered the flowers yesterday afternoon, __________? A. does she B. had she C. did she D. didn’t she 12. They never came to class in time, __________? A. didn’t they B. did they C. do they D. don’t they 13. Your brother doesn’t speak French, __________? A. doesn’t he B. does he C. don’t he D. doesn’t 14. Don’t forget to send my regards to your grandparents, __________? A. do you B. will you C. won’t you D. are you 15. Beautiful river, __________? A. isn’t it B. is it C. isn’t she D. is she 16. There is no big park in Châu Thành, __________? A. is there B. isn’t there C. are there D. aren’t there 17. Nobody has turned up, __________? A. has it B. hasn’t it C. have they D. haven’t they 18. No one likes snakes, __________? A. don’t they B. doesn’t it C. do they D. doesn’t he or she 19. I am right, __________? A. aren’t I B. am I C. are you D. don’t I 20. These mangoes look good, __________? A. don’t they B. doesn’t it C. don’t these D. don’t these cakes