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（1）A. I’d like some grapes.
B. I like grapes.
C. Some grapes, please.
（2）A .Yes, it is.
B. No, it isn’t.
C.Yes, there is.
（3）A .I can play computer games.
B.I like computers.
C.It’s a computer.
（4）A.On the wall.
B. A map of China.
C.Two.
（5）A.Yes, I can.
B. No, I can’t.
C. I can see some crayons.
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
