12. "We can ' t go out in this weather," said Bob, _______ out of the window.

　 　A. looking　　　 B. to look　　 C. looked　　 D. having looked

11. The picture ______ on the wall is painted by my nephew.

　 　A. having hung　 　B. hanging　　 C. hangs　 　D. being hung

10. The ______ boy was last seen_______ near the East Lake.

　 　　A. missing; playing　　 　B. missing; play

　 　　C. missed; played　　　　 D. missed; to play

9. He sent me an E-mail, ______ to get further information.

A. hoped　　 B. hoping　　 C. to hope　 D. hope

8. ______ from heart trouble for years, Professor White has to take some medicine with him wherever he goes.

　 　A. Suffered　 　　　　　　　　B. Suffering

C. Having suffered 　　　　　D. Being suffered information.

7. The bell ______ the end of the period rang, ______ our heated discussion.

　　 A. indicating; interrupting　　 　B. indicated; interrupting

　　 　C. indicating; interrupted　　　 D. indicated; interrupted

6. _______ such heavy pollution already, it may now be too late to clean up the river.

　 　A. Having suffered 　　B. Suffering　　 C. To suffer　　 D. Suffered

5. In some parts of London, missing a bus means _______ for another hour.　

　 　A. waiting　　　 B. to wait　　 　C. wait　　 　　　D. to be waiting

4. Though _____ money, his parents managed to send him to university.

　 A. lacked　　 B. lacking of　　 C. lacking　 　　D. lacked in

3. A cook will be immediately fired if he is found _____ in the kitchen.

　 　　A. smoke　　 B. smoking　　　 C. to smoke　　 　D. smoked