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B: Sorry, Clark. I’m afraid not.
A: Really? You must be very excited about that.
B: Yes.
A: Nervous about what?
B: I don’t know many of the customs and manners in the USA. Would you like to give me some advice?
A: I’d love to.
B: What should I do when I am invited to my friend’s home for dinner?
A:
B: And then?
A: It’s also impolite to say you are full.
B: What else?
A: After the meal, don’t leave at once, or it seems that you come only for dinner.
B: Oh, I got it.
A: You’re welcome.
| A．First, you should be on time. |
| B．But I’m kind of nervous. |
| C．You are supposed to say it’s delicious. |
| D．Thanks for your advice. |
| E．I am going to New York next week. |
同类型试题
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
