【正文】 him. I regret ___________ to help him that day. A. refusing B. to refuse C. refused D. refuse 10. Professor Li is often seen ___________ something in his office. A. to write B. write C. wrote D. written 11. Do you still remember __________ to your hometown ten years ago? A. taken B. to take C. to be taken D. being taken 12. She is not used _________ in the city. A. to live B. to living C. to have lived D. live 13. Hurry up! He is sure _________ us at the gate. A. waiting B. to wait C. to be waiting D. to be waiting for 14. _________ everywhere, the wolves had no where _________ themselves. A. Hunting。 hiding B. To hunt。 to hide C. Hunted。 hiding D. Hunted。 to hide 15. This is a _________ car. A. use B. using C. to be used D. used 16. When ________, ice changes into water. A. to heat B. heating C. heated D. they are heated 17. Charlie Chaplin is considered __________ a great contribution to the film industry. A. to make B. making C. to have made D. having made 18. _________ with you, we still have a long way to go. A. Comparing B. To pare C. Having pared D. Compared 19. They haven’t decided when __________ for Shanghai. A. to be leaving B. to leave C. leaving D. leave 20. I don’t know the girl ___________ in the snow storm. A. to catch B. caught C. catching D. to be catching 1. Friendship is like money： easier made than ______ (?03上海春 ) A． kept B． to be kept C． keeping D． being kept 2. ____ the meeting himself gave them a great deal of encouragement． A． The president will attend B． The president to attend (?03上海春 ) C． The president attended D． The president39。s attending 3. Unless ___ to speak， you should remain silent at the conference． A． invited B． inviting C． being invited D． having invited (?03上春 ) 4. She will tell us why she feels so strongly that each of us has a role ______ in making the earth a better place to live． (?03上海春 ) A． to have played B． to play C． to be played D． to be playing A D A B 5. How about the two of us ____ a walk down the garden? (MET93 17) A. to take B. take C. taking D. to be taking 6. ____ down the radio the baby?s asleep in the next room. (MET93 24) A. Turning B. To turn C. Turned D. Turn 7. Charles Babbage is generally considered ____ the first puter. (MET93 34) A. to invent B. inventing C. to have invented D. having invented 8. I must apologize for ____ ahead of time. That?s all right. (MET94 21) A. letting you not know B. not letting you know C. letting you know not D. letting not you know 9. Rather than ___ on a crowded bus, he always prefers ____ a bicycle. (NMET94 22) A. ride。 ride B. riding。 ride C. ride。 to ride D. to ride。 riding 10. The missing boys were last seen ____ near the river.(NMET94 25) A. playing B. to be playing C. play D. to play 11. The first textbooks ____ for teaching English as a foreign language came out in the 16th century. (NMET94 34) written B. to be written C. being written D. written 12. You were brave enough to raised objections at the meeting. Well, now I regret ____ that. (NMET95 26) A. to do b. to be doing C. to have done D. having done 13. The boy wanted to ride his bicycle in the street, but his mother told him_____. (NMET95 35) A. not to B. not to do C. not do it D. do not to 14. What do you think made Mary so upset? ____ her new bicycle. (97上海 13) A. As she lost B. Lost C. Losing D. Because of