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A: Can I help you, Miss White?
B: Yes. I want a pair of （一双） shoes, please.
A: What size?
B: Size 9.
A: How about these shoes? 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.
1．Miss White wants a pair of socks. （______）
2．The shoes are size 9. （______）
3．The shoes are black. （______）
4．The shoes are 50 yuan. （______）
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
