52. He noticed the helicopter hovering over the field. Then to his astonishment, he saw a rope ladder ( ) out and three men climbing down it.

45、The three men tried many times to sneak across the border into the neighboring country,( )by the police each time.

44.After( )seemed an endless wait, it was her turn to enter the personnel manager's office.

68、Yesterday my aunt bought some new( )for her flat at the seaside.

67、The scheme was( )when it was discovered it would be very costly.

66、Although I spoke to her about the matter several times, she took little( )of what I said.

65、Things went well for her during her early life but in her middle age her( )seemed to change.

64、Twelve is to three( )four is to one.

63、Have you ever received( )of what has happened to her?

62、The local police are authorized to( )anyone's movements as they think fit.

61、At first the company refused to purchase the equipment, but this decision was( ) revised.