Choose the best option to complete these following sentences.
1. Tom invited us to come to his party, __________?
2. There was an exciting football match on TV last night, _________?
3. - Who teaches you English? –Mr. Black_________.
4. I am not too fat, __________?
5. I'm wrong, _________?
6. Someone discovered penicillin in 1928, _________?
7. You stayed home last night, _________?
8. The poor don't have many things to eat, _________?
9. The teacher asked you if you finished your homework that day, __________?
10. You were driving home when you saw Lan, _________?
11. You are thirsty, __________?
12. Nam wishes he had worked hard last year, __________?
13. Not only the women but also the men _________ watching this programme.
14. Neither the students nor the teacher ___________ raincoats.
15. You had had breakfast before you went to school yesterday, ___________?
16. Only when you grow up, __________ the truth.
17. You could ride a bicycle when you were five, ___________?
18. There have been many achievements since the country carried out economic reforms, ________?
19. We don't need to go to the store today, ___?
20. People who exercise frequently are healthier than those who ____________.