问题补充：
根据对话内容，从方框内所给的选项中选出最佳选项，将其答案的序号写在方框下面的横线上,选项中有两项为多余项。
A: You must be really excited about leaving for America tomorrow, Li Ping!
B: Yeah.【小题1】
A: Nervous about what?
B: I don’t know many of the customs and manners in the USA.【小题2】
A: Sure.
B: 【小题3】
A: Well, it’s important to be on time when you’re invited for dinner.【小题4】 Americans expect their guests to be on time.
B: Then how long may I stay there?
A: 【小题5】 Or you seem to have come only for the meal.When your friends seem to be getting tired and running out of things, it’s time to leave.The next day, call or write a thank-you note to say how much you enjoyed the evening.
A.It’s good to stay at home for you.
B.After the meal, don’t leave at once.
C.Could you give me a hand?
D.What rules do they have in America?
E.But I’m a bit nervous.
F.You’re supposed to leave before the meal.
G.It’s impolitetoarrivelate.
E
答案：
(答案→)E
解析：
【小题1】根据下文的Nervous about what?可以看出李平有些紧张。结合语境及所给单词,可知选E。
【小题2】根据“我对许多美国的风俗和习惯都不懂”和下面的回答‘Sure.’可知此处是在寻求帮助。注意习惯用语‘give a hand’，意思是“帮一下忙”。结合语境及所给单词,可知选C。
【小题3】根据下文it’s important to be on time when you’re invited for dinner.可知上文问的是风俗礼仪。结合语境及所给单词,可知选D。
【小题4】根据下文Americans expect their guests to be on time.可知迟到是不礼貌的。结合语境及所给单词,可知选G。
【小题5】根据问句‘Then how long may I stay there?’和下文’‘you seem to have come only for the meal’以及‘When …,it’s time to leave.’可以确定，此处是告诫用餐后不能立刻就走人。结合语境及所给单词,可知选B。
根据对话内容 从方框内所给的选项中选出最佳选项 将其答案的序号写在方框下面的横线上 选项中有两项为多余项。A: You must be really excited about l
