He ______ not work hard that was why he failed in the exam.
A: did
B: was
C: does
D: is
A: did
B: was
C: does
D: is
举一反三
- 直到他考试不及格，他才知道努力学习很重要。 A: Not until he failed the exam he knew that working hard is important. B: Until he failed the exam did he know that working hard is important. C: Not until did he fail the exam he knew that working hard is important. D: Not until he failed the exam did he know that working hard is important.
- Not until he failed the exam ____ that working hard is important. A: had he know B: did he know C: he knew D: he had known
- Why did the man fail in the exam A: The exam was too difficult for him. B: He always played computer games. C: He was late for exam.
- He had failed in the exam. It made his father very angry. He had failed in the exam, .
- No one failed in the exam, _____ ? A: was he B: did one C: did they D: didn’t he