7. he was 改为was he　 8. to discover 改为to have discovered 9. that改为as

4. are改为is　 5.去掉and 或which改为it/that　 6. nor he could 改为nor could he

巩固练习

.一、 A.：　 DBBA　　 B：　 DBCCA

12. When asking the question, the man made no direct answer.

Answers:

课堂反馈

11. We still don’t know how the volcanic eruption damaged the whole city of Pompeii.

10. We will never forget the place where we visited last week.

9. Such books that the teacher mentioned are well worth reading.

8. Columbus is considered to discover the New World.

7. Not until the war was over he was able to go back to work.

6. Neither could the man eat, nor he could drink.