73.The speaker was very good at ( ) his ideas during the discussion.

69、We realized that he was under great( ), so we took no notice of his bad temper.

68、There are still many problems ahead of us, but by this time next year we can see light at the end of the( ).

67、-- Why are you staring?
-- I've never seen( )tree before.

66、Children who stay away from school do( )for different reasons.

65、He asked me to lend him some money, which I agreed to do, ( )that he paid me back the following week.

64、( )you( )further problems with your printer, contact your dealer for advice.

63、The meeting was put off because we( )a meeting without John.

62、What's the chance of( )a general election this year?

61、That was not the first time he( )us. I think it's high time we( )strong actions against him.

60、Do you know Tim's brother? He is( )than Tim.