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听力原文:M: Are you going with us to the concert, Helen?W: Maybe. I'm not sure.M: You'd be
听力原文:M: Are you going with us to the concert, Helen?
W: Maybe. I'm not sure.
M: You'd better make up your mind. We're leaving at six.
W: No, I don't think I will. I've got too much to do. I'm going to stay home.
Why won't Helen go to the concert?
A.She has too much to do.
B.She is ill.
C.She wants to study.