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This morning I went to a department store with my mum. Mum bought me a new umbrella because my umbrella was broken. There were lots of nice umbrellas in the store. We bought a blue one. It’s big but not heavy. And it’s got a big happy face on it. That’s lovely. I like it very much. I hope it will rain tomorrow so I can show it to my friends. Have you got a nice umbrella?
Love,
Daming
1．Daming wrote this letter to Dalong.2．Dalong’s umbrella was broken.
3．The new umbrella is green.
4．The new umbrella is big but not heavy.
5．They bought the umbrella in a supermarket.
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
