He came up with a new ______ to the problem at yesterday’s meeting.

While he has got high marks in the college entrance examination, he thinks that it is ______________ satisfactory.

To our surprise，the stranger ______ to be an old friend of my mother's.

 The results of the medical checkup suggested that my father       in poor health, so the doctor suggested that he        smoking and take more exercise. 

The teacher stressed again that the students should not ___________ any important details while retelling the story.