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It is 12 o’clock. The students are in the classroom. They are having a break （休息）. Linda is drawing a horse. Ann is helping her. They can draw very well. Ben is playing his drum. It’s noisy! I don’t like this noise. Sally is singing an English song. She is good at singing. She wants to be a singer（歌唱家）. Sandy is eating some French fries（薯条）They are nice. I can see a sign on the wall, it .says, “Don’t chase in the classroom.”
1．You can see some ______ in the classroom. ( )| A．pupils | B．teachers | C．singers |
—She’s ______.
| A．singing | B．drawing | C．eating |
| A．Yes, she can. | B．Yes, she is. | C．No, she can’t. |
| A．Ann. | B．Sally | C．Sandy |
| A．Linda’s picture | B．Ben’s drum | C．the sign |
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
