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Yesterday I went to the park with Sam and Amy. We climbed the hill and played football. We met John in the park. He’s Sam and Amy’s friend. We sang and danced. We had a good time. In the afternoon, we bought ice creams. Then we went home by bus. I ran to the bus, then I dropped my ice cream!
Love,
Lingling
1．Daming went to the park yesterday.2．Lingling, Sam and Amy met John in the park yesterday.
3．Lingling, Sam and Amy went home by bike yesterday.
4．Lingling walked to the bus.
5．Lingling dropped her ice cream.
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
