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Yesterday was Saturday. The weather was cloudy. I visited my grandma. But she was not at home. She went to the market to buy some food. My grandma came back home an hour later. She made a very delicious lunch for me. I helped her wash the dishes. I helped her water the flowers. I was very happy yesterday at my grandma’s home.
（）1.It was cloudy and windy on Saturday.
（）2. I visited my grandma yesterday.
（）3. Grandma went to the shopping centre to buy some clothes.
（）4.Grandma cooked delicious lunch for me.
（）5.I helped Grandma wash the dishes and water the flowers.
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
