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Amy: 1．
Mum: Tom, you shouldn’t play with the CDs. 2．
Tom: Sorry, Mum.
Mum: 3． Then you can go out to play.
Amy: 4．
Tom: Thanks. 5．
Mum: The room is clean now. What a good boy!
| A．We’ll help you. |
| B．You are welcome. |
| C．Will you help me? |
| D．I’m a good boy now. |
| E．He is making a mess. |
| F．You should tidy your toys. |
| G．And you shouldn’t put the books on the floor. |
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
