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三、单选项择，把正确答案的序号写在题前括号中。
( ) 1. --- Good morning.
--- _________________.
A. Good morning B. Good afternoon
( ) 2. – Good bye， Amy.
- __________ .
A. Hello B. Bye-bye
( ) 3. --- ____________________?
--- I’m fine, thank you.
A. What’s your name B. How are you