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Kate: Hi, Peter! Tomorrow is Lisa's birthday. I would like to go to her birthday party. 1．
Peter: Yes, I have got her invitation, too. But I am afraid I can't get there on time.
Kate: 2．
Peter: Well, I have a piano lesson every evening. But I can go there a little later.
Kate: That's fine. 3．
Peter: Sure, a small present will be nice.
Kate: Really? 4．
Peter: 5． Let's buy something for her now!
Kate: That's great!
| A．Should we prepare a gift for her? |
| B．How about you, Peter? |
| C．Why? |
| D．I don't know what she likes. |
| E．Don't worry. |
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
