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1．What’s she doing?
| A．She is singing a song. |
| B．She is playing the guitar. |
| C．She is playing the piano. |
| A．My mother is telling a story. |
| B．My mother is doing housework. |
| C．My mother is cleaning the room |
| A．I am talking. |
| B．I am running. |
| C．I am jumping. |
| A．My father wants to go to Beijing. |
| B．My father wants to go to school. |
| C．My father wants to drive the car. |
| A．I can see a puppy. |
| B．I can see a panda. |
| C．I can see a cat. |
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
