(1)A: What are you (do), my friends?
B: We’re (catch) insects, now. Come and (join) us!
A: Great!
(2)A: That boy is (talk) with a visitor. Can you see?
B: Oh, the boy can (speak) English very well.
A: Yes, let’s go and have a look.
(3)A: How do you spend your weekends?
B: I often (make) model ships. It’s interesting!
A: How does your sister spend her weekends?
B: I’m not sure. I think she often (fly) her kite in the park.
A: Does she like (fly) kites?
B: Of course.
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同类型试题
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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
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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
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