I think it is necessary for my 19-year-old son to have his own mobile phone, for I sometimes want to make sure if he _____ home for dinner.
What do you think of his suggestion ______ we organize a football club?
_____ is it ____has made Tom _____ he is today ?
The students seemed ____ , so I repeated the ______ question.
Today's expression, "Knowledgeis_____," is widely misunderstood. The more you know, the more ____ you will be.
—Why is Mr. Li so happy this morning? —Because he was honoured with a(n)______ for excellence in teaching.