39. Properly 　　　　　　with numbers, the books can be easily found.

　 A. marked　　 　　　 B. mark　　 　 C. to mark　　 　　 D. marking

38. Were you 　　　　when you saw that wild animal?　

　 A. fright　　 　 B. frightening　　 C. frightened　　 　 D. frighten

37. 　　　　　the composition, John handed it to the teacher and went out of the room　

　 A. Writing　 B. Having written 　 C. Written　　 　　　 D. Being written

36. "Can you read?" Mary said 　　　　　to the notice.　

　 A. angrily pointing　 B. and point angrily　　 C. angrily pointed 　 　　　 D. and angrily pointing

35. The visiting Minister expressed his satisfaction with the talks, 　　that he had enjoyed his stay here.

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

34. "We must keep a secret of the things 　　　here", the general said, 　　　at the man in charge of the information office.　

　 A. discussed, stared seriously 　 B. being discussed, seriously staring

　 C. to be discussed, seriously stared 　　　　 D. discussed, stared

33. China is one of the largest countries in the world, 　　　9.6 million square (平方) kilometres.

A. to cover　　 　 B. covered　　 　　　 C. covers　　 D. covering

32. The old sick lady entered the hospital, 　　　　her two sons.　

　 A. to support　 　　 B. supporting 　 C. supported by　 D. having supported

31. 　　　 　many times, he still couldn't understand.　

　 A. Having been told　　　 B. Having told 　　　　 C. He having been told 　　 D. Telling

30. Many things 　　　　　impossible in the past are very common today.

　 A. consider　 　　　 B. considering 　 C. considered　 　 D. be considered