问题描述：
A tourist has lost his cases and asks you for help.Ask him about the colour of them.
You are with a group of students and have found 2 tickets.What do you ask the group?
You give 2or 3 books,for example,to someone.What do you say?
You are with a group of students and have found 2 tickets.What do you ask the group?
You give 2or 3 books,for example,to someone.What do you say?
问题解答：
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