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We had a picnic yesterday. We went there by car. We played games. We ate lots of delicious food. Daming took some pictures and Mary made a poster. I sang with Amy happily. We had a good time. What about you?
1．Did they have a picnic yesterday? ( )| A．Yes, they did. | B．No, they didn’t. | C．Yes, they didn't. |
| A．Yes, they did. | B．No, they weren’t. | C．No, they didn’t. |
| A．Mary. | B．Daming. | C．Amy. |
| A．Daming. | B．Amy. | C．Mary. |
| A．Yes, they did. | B．No, they didn’t. | C．Yes, they were. |
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
