搜索
Teacher: (1)_____________________
Tim: I'm watching my classmates.
Teacher：(2)_____________________
Tim: Look, they are over there, in the woods.
Teacher：(3)_____________________
Tim: No, they aren't.
Teacher：(4)_____________________
Tim: They are having a picnic.
1、选择正确的句子补全对话。(4分)
| A．What are they doing? |
| B．What are you doing? |
| C．Are they collecting leaves? |
| D．Where are they? |
(1) What is Tim doing?
_____________________________________________
(2) What are Tim's classmates doing?
_____________________________________________
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
