读下面的对话并回答问题。
Joseph: Hello, my name's Joseph. Where are you from?
Andrew: Hi, I'm Andrew. I'm from the U.S. What about you?
Joseph: I'm from the U.K. This is my friend, Gao Ma.
Andrew: Nice to meet you. Where are you from?
Gao Ma: I'm from China. This is my friend, Mary.
Mary: Hello. I'm from Australia.
Andrew: Hello, Mary. Nice to meet you.
1. Where is Andrew from?
____________________.
2. Is Joseph from the U.S?
_____________________.
3. Where's Gao Ma from?
_____________________.
4. Is Mary from China?
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