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John: I'm in bed now.
Amy: Really?
John: No. I just feel very tired today.
Amy:
John: I cleaned my bedroom this morning and went to the bookstore this afternoon.
Amy: Wow, you are helpful at home.
John: I bought some comic books and some storybooks.
Amy: Sounds great! Tomorrow we'll have a picnic.
John: Sure.
Amy: By No. 15 bus. Let's meet at 8 o'clock at the bus station.
John. OK. See you tomorrow.
| A．What did you do |
| B．Would you like to join us |
| C．Are you sick |
| D．How did you go |
| E．What did you buy |
| F．How are we going |
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
