28.The time I first met John was a very difficult period of my life.

97.Do you know what the change in his attitude?

96.When Andrew was in South Africa, hego to that coffee shop at the corner every day.

95.Simon does nothis fellow workers because they often argue over trivial matters.

94.It is foolish of Nancy to Peter as her friend, because he always lies to her.

93.—Have you your friend Bill recently?一No, he doesn＇t often write to me.

92.I hadn＇t seen Mary for years, but Iher voice on the telephone right away.

91.Whether we will go on an outing this Saturdayon whether the weather is fine.

90.The birthday cakedelicious. I can＇t wait to taste it.

89.The professor needs an assistant he canto take care of problems in his absence.

88.If you need any help during your study here, please do notto ask.