19. If he had had time, he would have read this novel. 20. If she hadn't missed the bus, she wouldn't have been late. 21. If Peter studied hard, he could get good marks. 22. If my sister didn't have a terrible headache, she wouldn't be absent form her class. 29. Jane advised Andrew to look for a new job.
=> 19. If he had had time, he would have read this novel. 20. If she hadn't missed the bus, she wouldn't have been late. 21. If Peter studied hard, he could get good marks. 22. If my sister didn't have a terrible headache, she wouldn't be absent form her class. 29. Jane advised Andrew to look for a new job. 30. Mike thanked me for inviting him to my birthday party. 31. Thiếu từ gợi ý
