I had a little dog. He was cute and liked eating meat. I often washed him. His name was Dudu. He could open the door when I came back. He could jump to the sofa to watch TV. He could catch the balls when I threw (仍) them to him. He could hear us. He came back when I called him. I loved him.
1.The dog’s name was Dudu.2.The dog could read books.
3.The dog couldn’t catch the balls.
4.The dog couldn’t come back when I called him.
5.The dog was very cute and clever.

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

