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Yesterday was Saturday. Mary got up at seven o’clock. But it was rainy and she couldn’t go out to play. She helped her mother make a cake. After that she was hungry. She ate the cake with her mother. That’s delicious. She was very thirsty. So she drank some water. Then the rain stopped. Mary went out to play. She was very happy.
1．Yesterday was sunny. （2．Mary got up at eight o’clock. （
3．She helped her mother clean the room. （
4．After she helped her mother, she was hungry. （
5．She drank some water. （
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
