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（ ）1. What did your mother do yesterday? A Because he gets a new bike.
（ ）2. How did the mouse help the lion? B You can take a bus.
（ ）3. Can you help your parents at home? C They are singing happily
（ ）4. How can I go to the zoo? D She made a big cake for me.
（ ）5. Why is Wang Bing so happy? E I have a fever.
（ ）6. What’s the matter? F Yes, I can.
（ ）7. What are Su Hai and Su Yang doing? G He made a big hole with his teeth.
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
