Read the following dialogue and answer the question.

Peter : Do you know where Mary is?
Jane  : Mary … (1) in the kitchen. She is chopping up some vegetables as she is making a vegetable soup. 
Peter : How … (2) it?
Jane  : She is reading a recipe on the internet and … (3) the instructions displayed on it. She is enjoying herself.
Peter : I see. Why don’t you help her?
Jane  : I am busy doing my project right now.

The correct verb to fill the blank in number (2) is ….