根据对话回答问题。
Tom: Hi! I’m Tom. I’m in Class Two, Grade Four.
May: Hello! I’m in Class One, Grade Four.
Tom: Glad to meet you!
May: Glad to meet you, too!
Tom: I’m number 15. How about you?
May: I’m number 18.
1.What class is Tom in?
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2.What class is May in?
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3.What is Tom’s number?
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4.What is May’s number?
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