11. If I _____ her phone number, I _____ her last night
A. had known/ could have phoned B. knew/ would have phoned
C. know/ can phone D. knew/ could phone
12. If he ______ the truth, the police wouldn’t arrest him.
A. tells B. told C. had told D. would tell
13. If you press that button what _____?
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
C. had discovered/ would have informed
D. had discovered/ could inform
C. 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
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