I. Choose the best answer to complete these sentences. 51. Your mom has read this fairy tale for you many times, _______? A. has she B. does she C. hasn’t she D. doesn’t she 52. He seldom visits us, ________? A. does he B. doesn’t he C. has he D. hasn’t he 53. You’ve never been in London, _______? A. do you B. haven’t you C. have you D. don’t you 54. That’s Bob, ______? A. is that B. isn’t that C. is it D. isn’t it 55. No one died in the accident, ________? A. did they B. didn’t they C. do they D. don’t they 56. Nothing is wrong, ________? A. isn’t it B. is nothing C. is it D. isn’t nothing 57. I’m supposed to be here, _______? A. am I B. are you C. aren’t you D. aren’t I 58. Everything is OK, _______? A. is it B. isn’t it C. is everything D. isn’t everything 59. Everyone took a rest, ________? A. did they B. didn’t they C. do they D. don’t they 60. Going swimming in the summer is never boring, _______? A. isn’t it B. is it C. does it D. doesn’t it 61. Let’s dance together, _______? A. shall we B. do we C. don’t we D. will we Giups mình nha