What are you --------.Mary Do you have any problems?

题目

What are you --------.Mary Do you have any problems?
A worrying baout B worrying with Cworried of Dworried for 选什么

答案

What are you （A worrying baout）,Mary?Do you have any problems?
你在担心什么,玛丽?你有什么难题吗?
worry about sth,对某事担忧.介词要用about.