You look unhappy?What's up?I am__my best friend.She is ill.A.worry about B.worried for C.worrying about

分类: 作业答案 • 2022-01-02 13:55:31

问题描述：

You look unhappy?What's up?I am__my best friend.She is ill.
A.worry about B.worried for C.worrying about

答

C.worrying about