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1. —_____ are you doing？
—I’m reading.
2.（钻石）_____ .
3. —What are you doing?
—I’m _______ a map.
4. We are _____ Green Hill.（填上合适的介词）
5. The Big Stone is ____ the hill. （填上合适的介词。）
6. —_____ is the diamond？
—On the hill.
7. You can find it at the top ____ the hill. （填上合适的介词。）
8. The lake is ____ a big diamond.（像）
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
