A、To go shopping. B、To do research for her story. C、To meet her professor. D、To take a break from her work. B细节题。四个选项都是表示行为动作的不定

M: [19] I am so relieved I just finished the story I was working on for our creative writing course.
W: I haven’t quite finished mine yet. [20] I had trouble getting past the beginning.
M: How come?
W: Well, I was really happy to be writing a detective story. [20] But after the first few pages, I sort of froze up mentally. I just couldn’t write any more.
M: The same thing happened to me. I thought it meant I lack imagination.
W: Well, Prof. Wilson said it’s pretty common for writers to get stuck like that.
M: You went to talk to her about it?
W: Actually, I went to ask for more time to finish the assignment. But instead she gave me some advice about how to keep from getting stalled writing like that. [21] She said that the first thing I should do is just write anything that come into my head even if it doesn’t make any sense, sort of warm up exercise.
M: That’s interesting. When I get stuck, I shift to something else, you know, do some work for one of my other courses.
W: Well, her methods seem to have worked for me. I’ve written most of the story, and I should be able to hand it in on time. But first I need go to the jewelry store.
M: You are going shopping? Can’t you wait until you finish your story?
W: [22] I am going there for my story. My detective solves a jewelry store robbery. So I want to take a look at how the jewelry cases are arranged, where the security cameras are located, that sort of thing.