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| A. I do. B. They're catching fish. C. I took a lot of photos. D. Yes, it is. E. It means "No fishing". F. No, there wasn't. G. They're going to buy some fruit. H. No, I didn't. |
1．Is the river dirty?
2．Who makes our bedroom messy?
3．What are they doing?
4．What are they going to do?
5．What did you do there?
6．Did you take the juice into the bookshop?
7．Was there a foolish king long long ago?
8．What does it mean?
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
