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My name’s Mary. I’m thirteen. I’ve got a brother. His name is Jack. Today is Saturday. It’s Jack’s birthday. My parents and I are going to have a birthday party for him. Now my mother and I are at the supermarket. I’m buying a pen. It’s a present for Jack. My mother is buying some fruit and eggs. She’s going to make a big birthday cake for Jack. My dad is at home. He’s cooking delicious food in the kitchen.
1．Mary is 15.2．Today is Saturday.
3．Mary will give Jack a pen as(作为) a present.
4．Mary’s mother is going to make a big birthday cake for Jack.
5．Mary’s father is buying some fruit and eggs now.
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
