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Mum: Tom! Tom! It's time to get up.
Tom: _______________________?
Mum: It's about 8:00.
Tom: What? Is it 8:00 now? ________________. I am late.
Mum: Oh, Tom. Don't hurry. ____________________.
Tom: I can't have breakfast. There's no time. I must go now. I'm late.
Mum: _____________________?
Tom: For school. Classes begin at 8:00, not at 8:30.
Mum: Well, __________________? Please tell me.
Tom: It's ... It's Sunday! (Tom and his mother are laughing)
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
