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（1）Are they your parents?
| A．Thirty yuan. （2）What is the weather like today? | B．They are hens. （3）How much is the nice shirt? | C．No. It’s time for math. （4）Is it time for English? | D．No, they aren’t. （5）Whose dresses are those? | E．It’s cloudy and cool. （6）What are these? | F．They are my mother’s. （7）How old are you? | G．She’s a nurse. |
（9）What would you like for dinner? I. I have nine.
（10）What’s your mother? J. I’d like some chicken.
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
