68. --- Did you get a dictionary?

　--- No, I _____, but there were not any _____.

A. tried; to be left 　　　　　　　 　B. had tried to; leaving

C. tried to; left 　　　　　　　　　 D. had tried; have left

67. _____, the subject was always in my mind.

A. Walking or sleeping　　　　　 　　B. Walking or slept

C. Having walked or slept　 　　　　 D. To walk and sleep

66. As I will be away for at least a year, I’d appreciate _____ from you now and then so that I can know how everyone is getting along.

A. having heard 　B. to hear　　 　　C. hearing 　　 D. being heard

65. The program was so exciting that the children kept their eyes _____ on the screen.

A. to fix 　　　 B. to be fixed　　 　C. fixed 　　　 D. fixing

64. The thief fell to the ground, his left foot _____ and blood _____ down from his mouth.

A. breaking; running 　　　　　　　 B. broken; running

　C. breaking; run 　　　　　　　　　D. broken; run

63. The monument was built in honor of the explorer who was believed _____ the river.

A. to have discovered　　　　　　　 　B. to have been discovered

C. to discover　　　　　　　　　 　　D. having been discovered

62. You can’t imagine what great trouble they have _____ the problem _____.

A. to solve; being talked about　　　 B. solving; discussing

C. to solve; to talk about　　　　　　D. solving; being discussed

61. It was getting dark; I found a car _____ in a pool by the side of the road.

A. to be stuck 　　 　B. stuck 　　　 　C. sticking 　　D. stick

60. In January , 2004, the United States successfully launched “Spirit”, a Mars Exploration Rover, _____ a new milestone in the history of mankind.

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

59. The old farmer, _____ the badly injured and burnt soldier, came out of the burning farmhouse, calling continuously for help.

A. supporting 　　　　　　　　　　　　　 B. having supported

C. being supported by 　　　　　　　　　 D. being supported