情景选择。1. 下午遇见朋友，该如何打招呼？

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A. Goodbye.
B. Good morning.
C. Good afternoon.2. 想询问别人来自哪个国家，可以问：

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A. Where are you from?
B. What's your name?
C. How are you?3. 班上来了位新同学，你应该说：

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A. I'm from China.
B. Welcome!
C. Boy or girl?4. 放学了，你可以对同学说：

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A. Nice to meet you.
B. Goodbye!
C. Hi, Amy.1-4 C A B B