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A=Assistant（售货员）
B=Amy
A: Can I help you?
B: Yes. I want a pair of （一双）shoes, please.
A: What size?
B: Size 6.
A: How about this pair? They are black. They are good.
B: How much are they?
A: They are forty yuan.
B: OK. They’re cheap. I’ll take them.
[[QOrDeR]]Amy wants a pair of socks. （
【小题2】The shoes are size 7. （
【小题3】The shoes are black. （
【小题4】The shoes are 50 yuan. （
【小题5】The shoes are too expensive. （
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
