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A：从方框中选出最佳选项完成下面的对话。
| A. And Daming is eating lunch and lying in the sun. B. Lingling and I are writing postcards. C. Where are you? D. We’re on a school trip and we’re having a good time. E. What are the others doing? |
B: Yes, I can. 1．
A: I’m standing on the Great Wall of China
and talking to you.
B: Really?
A: 2．
B: That’s great, Betty. 3．
A: Well, Tony is eating an ice cream, Wang Hui
is taking lots of pictures and Lingling is buying some presents and postcards. 4．
B: Can you send me a postcard too?
A: Yes. 5． We’re enjoying the school trip a lot. Anyway, we’re going home now. Bye!
B: Bye-bye, Betty!
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
