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（______） 1. —Look, what is my mother doing? —She’s ________.
A. going fishing B. cooking dinner C. doing homework
（______） 2. Sarah and Amy are ________.
A. flying kites B. playing football C. reading books
（______） 3. Hello ________. Can I speak to Mike, please?
A. this is Wu Yifan B. this is Chen Jie C. this is Sarah
（______） 4. Her grandpa is ________.
A. my father B. my uncle C. my teacher
（______） 5. －When is your birthday? －________
A. My birthday is in May. B. My birthday is in June. C. My birthday is in March.
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
