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Hi. My name is Tom. Look! This is my schoolbag. It's big. It's blue. I like it very much. This is my pencil box. It's blue, too. This is my pencil. It's green and it's long. I have a pen. It's black. My friend David has a schoolbag, too. It's small and yellow. David has a green pencil box. This is David's pencil. It's short and blue. David has a long ruler. He likes it very much.
1．Tom has a big schoolbag.2．Tom's pencil box is green.
3．Tom has a long green pencil.
4．Tom has a yellow pen.
5．David's schoolbag is big.
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
