根据情景提示，选择正确的选项。
1. 当你要询问他人“你多大啦？”时，你应该说：[ ]
A. How was your?
B. How old are you?
C. How much is it?
2. 当你想知道这是否是她妈妈的钱包时，你应该说：[ ]
A. Is that your mother's purse?
B. What's that?
C. Is this her mother's purse?
3. 当你要询问他人“你明天将要做什么？”时，你应该说：[ ]
A. What will you do tomorrow?
B. Where will you go tomorrow?
C. When will you go to the zoo?
4. 当别人祝你旅途愉快时，你应该说：[ ]
A. Not at all.
B. Thank you.
C. Of course.
5. 当你要表达“我认为英语最有趣。”时，你应该这样说：[ ]
A. I think English is more interesting than math.
B. I think English is the most interesting.
C. I don't think English is the most interesting.