2. If you don't stop talking, you won't understand the lesson.

3. If I had known her number, I would have rung her up.

4. If I knew the answer, I would tell you.

5. If we had had the map, we wouldn't have got lost.

6. If Susan hadn't ate four cream cakes, she would not have felt sick.

7. If it hadn't been for this treatment, the patient would have died.

8. If he hadn't been late every day, he would not have lost his job.

9. If Peter didn't eat so many chips, he wouldn't be fat.

10. If Robert hadn't smoked cigarettes, he wouldn't have got a bad cough.

2. if you don't stop talking, you won't understand the lesson 

3. if i had known her number, i would have rung her up 

4. if i knew her answer, i would tell you 

5. if we had a map, we wouldn't have got lost 

6. if susan hadn't ate four cream cake, she would not have felt sick 

7. if it hadn't been for this treatment, the patient would have died 

8. if he hadn't been late every day he would not have lost his job 

9. if peter didn't eat so many chips, he would't be fat 

10. if robert hadn't smoked cigarettes, he would't have got a bad cough

      -answer by jane-