17. Which is ___ country, Canada or Australia?

　 A. a large　　 B. larger　　 C a larger　　 D. the larger

16. Before she went abroad she spent as much time as she

　 could ___ English.

　 A. practising speaking　　　 B. practise speaking

　 C. to practise speaking　　 D. practise to speak

15. Because ___ the teacher had said, he changed his mind.

　 A. of that　　 B. of what　 C. of which　 D. what

14. The meeting ___ over, we all left the room and drove home.

　 A. being　　 B. was　　 C. is　　　 D. would be

13. ___, but he is still working hard in his lab day and night.

　 A. He is very old　　　　 B. Old as he is

　C. However he is old　　　 D. Much old as he is

12. Not only ___ polluted but ___ crowded.

　 A. was the city/were the streets

　 B. the city was/were the streets

　 C. was the city/the streets were

　 D. the city was/the streets were

11. As we know, ___ nature is at its ___ best in spring.

　 A. the/x　　 B. x/the　　 C. the/the　　 D. x/x

10. "___ sounds!" said Mrs. Brown.

　 A. How sweet the music　　　 B. How sweetly the music

　 C. What the sweet music　　 D. What sweetly the music

9. The gas is still on. She ___ it off.

　 A. must forget turning　　　 B. must forget to turn

　 C. must have forgotten turning　 D. must have forgotten to turn

8. It was ___a Monday night __ all this happened.

　 A. at/when　　 B. at/that　 C. on/which　 D. on/that