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My schoolbag
This is my schoolbag. It is not big. But (但是) it is beautiful (漂亮的). It is red. I like (喜欢) red. A blue pen is in my schoolbag. And a yellow pencil is in my schoolbag, too. Oh, I have a ball. It is round (圆的). Here are four books in my schoolbag. This is my English book. My English teacher is Ms Cheng. I like her very much.
1．My schoolbag is big.2．I have a blue pen.
3．The ball is round.
4．Here are five books in my schoolbag.
5．My English teacher is Mr Cheng.
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
