45. She set out soon after dark _____ home an hour later.

A. arriving　　　 B. to arrive　　　 C. having arrived　　 D. and arrived

44. The first textbooks ______for teaching English as a foreign language came out in the 16^th century.

A. having written　　 B. to be written　　 C. being written　　 D. and arrived

43. The visiting Minister expressed his satisfaction with his talks,______that he had enjoyed his stay here.

A. having added　　 B. to add　　 C. adding　　 D. added

42. ______down the radio -the baby's asleep in the next room.

A. Turning　　 B. To turn　　 C. Turned　　 D. Turn

41. How about the two of us_____a walk down the garden?

A. to take　　　 B. take　　 　C. taking　　 D. to be taking

40. Charles Babbage is generally considered______the first computer.

A. to invent　　　 B. inventing　　 C. to have invented　 D. having invented

39. The computer centre,______last year, is very popular among the students in this school.

A. open　　 B. opening　　　 C.having opened　　　 D. opened

38. "Can't you read?"Mary said_____to the notice.

A. angrily pointing　　　　 B. and point angrily

C. angrily pointed　　　　　 D. an angrily pointing

37. _____is a good form of exercise for both young and old.

A. The walk　　 B. Walking　　 C. To walk　　 D. Walk

36. I would appreciate______back this afternoon.

A. you to call　　　 B. you call　　　 C. your calling　　 D. you're calling