Waiter: Welcome, sir. May I help you?

Customer: _________

A. Thank you. I'll have fried tofu and stir-fried cauliflower.

B. Yes, please. I'd like a hamburger and a chocolate shake.

C. Sorry. I don't need your help, thank you.

D. If you want to help me, I'll be glad to accept it.

B 【解析】顾客到了餐馆，侍者问客人要吃什么。客人点了hamburger and a chocolate shake，符合当时的场合及语境。