阅读短文，回答问题。
Kangkang: Hello, Tom. It's Kangkang. Would you like to play football now?
Tom: No, I'm sorry, Kangkang. I can't. I'm busy.
Kangkang: What are you doing?
Tom: I'm helping mom. We're painting (粉刷) our house. It's interesting.
Kangkang: Can I help? I love painting.
Tom: Yes, if (如果) you like. Come now. Wear some old clothes.
Kangkang: OK. See you in 15 minutes. See you later!
Tom: See you!
1. Who is Kangkang phoning?
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2. Why can't Tom play football now?
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3. Does Kangkang like painting?
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4. Does Kangkang want to help Tom?
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5. What must Kangkang wear?
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