9. ① Is this museum _____ they visited last month?

　 ② The teacher tells us that _____ cleans the blackboard is to be praised.

　　　 A. that　　　 　　 B. the one　　　　C. which　　　D. the one who

8.① Galileo collected the facts _____ proved the earth and all the other planets move around the sun.

　② Galileo discovered the fact _____ the earth and all the other planets move around the sun.

　　　 A. that　　　　　 B. which　　　　 C. 不填　　　 D. A and B

7.① This is the only way _____ you can find.

　② I don’t like the way _____ he spoke to his mother.

　　 A. that　　　 B. 不填　　 C. in which　　D. A, B and C　　E. A and B

6.① I’ll never forget the days _____ we studied together.

　② I’ll never forget the days _____ we spent together.

　　　 A. that　　　　　 B. 不填　　　　 C. when　　　　 D. A and B

5.① _____ we all know, China is rich in natural resources.

　② _____ is well-known that China is rich in natural resources.

　③ _____ is well-known, China is rich in natural resources.

　　　 A. Which　　　　　B. As　　　　　 C. It　　　　　D. That

4.① _____ leaves the room last ought to turn off the lights.

　② _____ who leaves the room last ought to turn off the　lights.

　③ _____ who leave the room last ought to turn off the lights.

　　　 A. Anyone　　　　 B. Who　　　　　C. Those　　　　D. Whoever

3.① He still lives in the room _____ window faces to the east.

　② He still lives in the room, the window _____ faces to the east.

　③ He still lives in the room _____ is in the north of the city.

　④ He still lives in the room _____ there is a beautiful table.

　　　 A. which　　　　　B. whose　　　　C. where　　　　D. of which

2.① He has two sons, _____ are college students.

　② He has two sons, and _____ are college students.

　　　 A. both of which　B. both of whom　C. both of them　D. both of it

定语从句对比练习

1.① This is one of the most interesting films _____ shown last week.

　② This is the very one of the most interesting films _____ shown last week.

　　　 A. which was　　　 B. that was　　　 C. which were　　D. that were

14.that改成when　　　　 15.that改成where