1. if he had come, i could have spoken to him about it.

2. if his bicycle wasn't break, his friends wouldn't give him a lift.

3. if you had left soon, you could have gotten there by noon.

4. if he hadn't hurried, he would have left his briefcase on the bus.

5. if he reads in bad light, he will ruin his eye.

6. if he had listened carefully, he could have understood the leson.

7. if she knew that man, she could ask for help. 

8. if the story had been true, the newspaper could have printed it.

1. He didn't come so I can't speak to him about it =>If he didn't come, I can't speak to him about it

2. His bicycle is broken, so his friend gives him a lift. =>If his bicycle is broken, his friend will give him a lift.

3. You didn't leave soon, so you didn't get there by noon. =>If you didn't leave soon, you didn't get there by noon.

4. He was in a hurry so he left his briefcoase on the bus. =>If he was in a hurry, he will left his briefcoase on the bus.

5. He will ruin his eye because he reads in bad light. => He will ruin his eye if he reads in bad light.

6. He didn't understand the lesson because he didn't listen carefully. =>He will not understand the lesson if he didn't listen carefully.

7. She doesn't ask for help because she didn't know that man. =>She will not ask for help if she didn't know that man.

8. The newspaper didn't print the story because it wasn't true. =>The newspaper will not print the story if it wasn't true.