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| A．We took some sandwiches. |
| B．Did you get wet? |
| C．We ran quickly to hide. |
| D．We had a picnic |
| E．We were hungry and angry with the ducks. |
Sam: (1)___________________ in the park.
Peter: Really? What did you take with you?
Sam: (2)___________________ But then it stared to rain.
Peter: Oh! (3)___________________
Peter: No, we didn’t. (4)___________________
Sam: How about your sandwiches?
Peter: Some naughty ducks ate them. So (5)___________________
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
