11. If I______ to the party last night, I ______ tired now.
a. had gone/ would be b. had gone/ would have been
c. went/ would be d. went/ would have been
12. Tom…. for the examination last week if he ______ that it would be so difficult.
a. wouldn't enter/ had known b. wouldn't have entered/ knew
c. wouldn't have entered/ had known d. wouldn't enter/ knew
13. Tom got to the station in time.
If he______ the train, he ______ late for his interview.
a. missed/ would have been b. had missed/ would be
c. missed/ would be d. had missed/ would have been
14. Ann______ longer if her other had let her.
a. could have stayed b. could stay c. stays d. stayed
15. If only Tom ______ sick today.
a. weren't b. hasn't been c. hasn't d. didn't