—Why not talk with your parents about your willingness to attend Peking University Summer Camp?—I tried __________to get them to listen to me.
---I am going to the supermarket to buy a quilt. --- ________ You can easily buy one on the Internet.
The doctor persuaded him to _____ smoking. A throw away B put out C give up D take away
That boy spent much time _____ computer games. A play B playing C played D to play
I am too tired. I _____ my homework all morning. A have been doing B did C do D have done
_____ we know, Mr. Black is an expert on language teaching. A As B That C Which D What