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（1）A.It’s 20 yuan. B.They’re 20 yuan. C. 2 hamburgers
（2）A.It’a a tape . B. There’s a ruler. C.It’s pink.
（3）A. A grape . B.No, they aren’t . C.Some pineapples.
（4）A.Yes, some bread,please. B.OK. Here you are. C. I’d like some juice.
（5）A.How do we go there? B. Let’s go by bike. C.Shall we go on foot?
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
