18. Tom is talkative. I’m sure you’ll soon get tired( )him.

70、________ you are leaving tomorrow, we can have dinner together tonight.

69、The workers are busy ____models for the exhibition.

68、The reason I did not go abroad was _____ a job in my home town.

67、Don’t forget ________ the window before leaving the room.

66、A pair of spectacles ________ what I need at the moment.

65、I fell and hurt myself while I ________ basketball yesterday.

64、You had better ________ a doctor as soon as possible.

63、It’s ________ that he was wrong.

62、I won’t make the _______ mistake next time.

61、We came finally _________ the conclusion that she has been telling lies all the time.