遇到下列情况你该怎么说？选择正确的选项。
1. 当你想知道这是什么东西时，应这样说：[ ]
A. What's this?
B. It's a book.
2. 当你认识了一位新朋友时，你要说：[ ]
A. Nice to meet you.
B. How are you?
3. 当别人对你说“Good-bye!”时，你应回答：[ ]
A. Hi!
B. See you later!
4. 对方问你的身体状况时，如果感觉很好，你应该说：[ ]
A. I'm fine, thanks.
B. How are you?
5. 当你想知道她的名字时，你要这样问：[ ]
A. What's his name?
B. What's her name?
6. 当你想问课本在哪里时，你应说：[ ]
A. How many books do you have?
B. Where is my book?