【正确答案】 B

【答案解析】[解析] 44-46
W: Would you like to begin with an appetizer this evening?
M: No, thank you. I think we'll just be having a main course.
W: Are you ready to order now or would you like me to come back in a few minutes?
M: I think we're ready. We'd like to order two seafood platters, please. One with prawns and one with crab.

关键词appetizer(开胃菜)、main course(主菜)、to order(点菜)表明该场景是在restaurant(餐厅)。干扰词main course在此处指“主菜”而不是“主要课程”，所以该场景不是在classroom(教室)(A)。这段对话所发生的场所既不是store(商店)(C)，也不是waiting room(等候室)(D)。

【正确答案】 A

【答案解析】We'd like to order表示男士已经决定现在点菜(A)，而不是更改已点菜单(B)或过一会儿再点菜(D)。对话中并未提及支忙账单的事宜，所以选项(C)不正确。

【正确答案】 D

【答案解析】男士说他们只吃一道主菜(just...a main course)，选项(D)完全符合此意，而选项(A)、选项(B)、选项(C)均不正确。