问题描述：
you didn't lose the train ticket,did you?---i know it is not easy to get another one now
a.i am afraid not b,i think no d i don't hope so d.i hope not
D和C有何区别啊
a.i am afraid not b,i think no d i don't hope so d.i hope not
D和C有何区别啊
问题解答：
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