715.It is worth considering what makes convenience foods so popular,and ______ better ones of your own.

A.introduces
B.to introduce
C.introducing
D.introduced

716.There is nothing more I can try ______ you to stay,so I wish you good luck.

A.being persuaded
B.persuading
C.to be persuaded
D.to persuade

来源:可可英语 http://www.kekenet.com/menu/201507/389406.shtml