Câu 21: Lan: I'm leaving for lunch. ______? - Mai: Thanks, but I can't right now. I'm really busy.
A. Do you come
B. Would you like to come
C. Could you come
D. Do you feel like going
Câu 22: Some animals are on the ______ of becoming extinct.
A. verge B. tip C. edge D. side
Câu 23: If I had had enough money, I ______ a dictionary.
A. would bought B. would buy
C. will buy D. would have bought
Câu 24: I ______ to parties very often.
A. don’t invite B. not invited
C. not invite D. am not invited
Câu 25: I think you ______ apologize for your bad behaviour.
A. ought B. shall C. should D. have