Nhanh nhất có thể : They won’t pass the final exam_________ they try harder. A. if B. whether C. unless D. because 2. The village ______________we spent our vacation in is peaceful. A. which B. where C. when D. in which 3. My brother wishes he___________ football as well as Ronaldo. A. can play B. plays C. will play D. played 4. “ Will you have a test tomorrow?” He asked. A. He asked me if I will have a test tomorrow B. He asked me whether I would have a test tomorrow. C. He wanted to know if I would have a test the next day. D. He asked me if I had a test the next day. 5. That’s _____________. They have returned in time. A. disappointed B. great C. boring D. terrible 6. She has left for work____________ early morning. A. for B. in C. on D. since 7. Her friends_____________ that she try more. A. made B. let C. encouraged D. suggested 8. It is important to find out an effective vaccine to ____________ viruses of Covid-19. A. prevent B. save C. treat D. escape 9. Choose the word with underlined part is pronounced differently from that of the others . A. laughed B. danced C. ploughed D. missed 10. He never smokes___________?. A. doesn’t he B. does he C. isn’t he D. is he