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Ⅰ Ⅱ
（_____） 1. Can I open the box, Mum?
A．I’m looking for my keys.
（_____） 2. Is your mother’s birthday in July?
B．There are twenty.
（_____） 3. What are you doing?
C．Yes, I do.
（_____） 4. When’s your birthday?
D．Sure.
（_____） 5. Do you have the answer?
E．My birthday is on the ninth of May.
（_____） 6. How many girls are there in your class?
F．No, her birthday is in December.
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
