1. If I ____ where he lived ， I ____ a note to him. A. knew ， would B. had known ， would have sent C. know， would send D. knew， would have sent 2. If they ____ earlier than expected ， they ____ here now. A. had started， would be B. started， might be C. had started， would have been D. will start ， might have been 3. I didn't know his telephone number. ____ it ， I ____ then. A. Had I known ， would ring him up B. Should I know ， would have rung him up C. If I knew ； would ring him up D. Had I known ； would have rung him up 4. Mary is ill today. If she _____ ， she ____ absent from school. A. were not ill ， wouldn't be B. had been ill ， wouldn't have been C. had been ill， should have been D. hadn't been ill ， could be 5. Were I to do it ， I ________ it some other way. A. will do B. would do C. would have done D. were to do 6. I ________ him the answer ________ possible ， but I was so busy then. A. could tell ， if it had been B. must have told ， were it C. should have told ， had it been D. should have told ， should it be 7. Without your help ， we________ so much. A. won't achieve B. didn't achieve C. don't achieve D. wouldn't have achieved 8. You didn't take his advice. ________ his advice ， you ________ such a mistake. A. Had you taken ， wouldn't have made B. If you had taken ， would make C. Were you lo take ， shouldn't have made D. Have you taken ， won't have made 9. We wish we ____ what you did when we were at high school. A. did B. could have done C. have done D. should do 10. She wishes she ____ to the theatre last night. A. went B. would go C. had gone D. were going 11. Tom is very s...
