----- Nội dung ảnh -----
A. would happen B. would have happened C. will happen D. happen
14. She says if she _____ that the traffic lights were red she _____.
A. had realized/ would stop B. realized/ could have stopped
C. has realized/ stopped D. had realized/ would have stopped
15. I am very thin. I think, if I _____ smoking, I might get fat.
A. stop B. had stopped C. will stop D. stopped
16. If I _____ that yesterday, I _____ them.
A. had discovered/ would inform B. had discovered/ would have informed
C. had discovered/ could inform D. discovered/ can inform
17. If you __________ to the course regularly, they __________ a certificate last year.
A. go/ gave B. go/ give C. had gone/ would have given D. went/ would give
18. I think he is not at home. If he __________ in, he __________ the phone.
A. was/ answered B. were/ would answer
C. were/ would have answered D. had been/ would have answered
19. If I __________ in London now, I could visit British Museum.
A. were B. had been C. have been D. would be
20. If Columbus __________ money from Queen Isabella, he __________ across the Atlantic.
A. do not receive/ could not sail B. had not received/ might not have sailed
C. did not receive/ might not have sailed D. would not receive/ might not sail