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A: Hello, Liu Tao.
B: Hi, Wang Bing. May I use （用）your ruler?
A: Sure. Oh, where’s my ruler? B: Is it in your pencil box?
A: No, it isn’t. B: Here’s a ruler. It is yours?
A: No. It’s yellow. It’s Gao Shan’s. My ruler is green.
B: I see a ruler under your desk. Is it yours?
A: Yes, it is. Here you are. B: Thank you.
（1）Wang Bing can’t find his ruler.
（2）Wang Bing’s ruler is in his pencil box.
（3）Gao Shan’s ruler is yellow.
（4）The green ruler is Liu Tao’s.
（5）Wang Bing finds his ruler at last（最后）.
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
