1. We will be late for work if we don't go out at once.
2. If he comes at six, he won't see the film.
3. He will be angry if she doesn't tell him the reason.
4. If she reads the letter, she will understand everything.
5. I will tell him the truth if he asks me.
6. If she doesn't ring me up tonight, I will send her a telegram.
7. She won't probably read the play until we ask her.
8. You won't miss much if you don't go there.
9. I will help you as soon as I come.
10. She won't marry until she is twenty-five.