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I’m a ten-year-old boy. My name is Sandy. I’m from Shanghai. Shanghai is a beautiful city. I love it very much. Mary is my good friend. She is thin. She likes singing very much. She is not from Shanghai. She is from Beijing, We often play together（一起）. After class, we usually（通常）clean the classroom. Mary always cleans the blackboard and I clean the desks and chairs. Then we go home together.
1．I’m _________ now. ( )| A．nine years old | B．ten years old |
| A．Chinese | B．American |
| A．desks | B．blackboard |
| A．to school | B．home |
| A．Singing | B．Dancing |
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
