单项选择题

案例分析题

M：Hello，Julia.Why are you in such a hurry？
W ：Hello，Peter.I’m going to the theatre.They say there’s a lecture on how to improve the skills of listening.Do you want to go with me？
M：Oh，no.Thanks.I heard it yesterday.
W：Really？What did you think of it？
M：I liked it，but I was sorry to have missed the first part.
W：Oh，what happened？
M ：I was held up on the way.So by the time I got there，the second part was just beginning.
W：What a pity !But I’11tell you about it after I hear it.
M：Thanks.I hope you’ll enjoy it.

Peter won’t go with Julia because （）.