I. Choose the best option to complete these following sentences. 1.Tom invited us to come to his party, __________? A. hadn’t he B. couldn’t he C. wasn’t he D. didn’t he 2. There was an exciting football match on TV last night, _________? A. wasn’t it B. was not there C. wasn’t there D. was it 3. – Who teaches you English? –Mr. Black___.A. is B. teaches C. does D. do 4. I am not too fat, __________?A. aren’t I B. do I C. am I D. are I 5. I’m wrong, _________?A. am not B. aren’t I C. are not D. amn’t 6. Someone discovered penicillin in 1928, _________? A. hadn’t he/she B. didn’t he/she C. didn’t someone D. wasn’t he/she 7. You stayed home last night, _________? A. had you B. would you C. didn’t you D. did you 8. The poor don’t have many things to eat, _________? A. do we B. do they C. do you D. do I 9. The teacher asked you if you finished your homework that day, __________? A. hadn’t he B. didn’t he C. didn’t you D. hadn’t he 10. You were driving home when you saw Lan, _________? A. didn’t you B. weren’t you C. wouldn’t you D. hadn’t you 11. You are thirsty, __________? A. don’t you B. aren’t you C. are you D. are not you 12. Nam had worked hard last year, __________? A. hadn’t Nam B. hadn’t he C. doesn’t Nam D. doesn’t he 13. You had had breakfast before you went to school yesterday, ___________? A. hadn’t you B. didn’t you C. wouldn’t you D. weren’t you 14. You could ride a bicycle when you were five, ___________? A. hadn’t you B. didn’t you C. weren’t you D. couldn’t you 15. There have been many achievements since the country carried out economic reforms, ___? A. don’t there B. haven’t they C. haven’t there D. don’t they