10. He said that he would be home by five if he caught the plane.
11. My mother advised me to stay in bed if I felt unwell.
12. I asked Jane what she would do if she were having a problem with grammar.
13. Matthew told Jane if he had had his mobile the previous day, he could have contacted her.
14. She said that if she didn't practise her English, she wouldn't get better marks.
15. He told his students that if they pressed that switch, the computer would come on.
16. He said to his friends he had been in bad trouble if he hadn't helped him.
17. She wondered if the door was clocked, what should she do
18. She said to me that if she had any money, she would buy me a drink.
19. She said to her brother that if she were him, she would stop smoking.
20. Lan's mother told her to be modest if she was a good pupil.
@vanw.