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1．—Look at my puppet. —It’s nice.
2．—Happy Birthday, Tom! —Thank you!
3．—Would you like this T-shirt? —No, thank you.
4．—Are you Wang Bing? —No, I’m not. I’m Liu Tao.
5．This balloon is for you, Sam. —Thanks, Bobby and Tina.
6．—Mum, this is Miss Li. —Nice to meet you.
7．—Good morning, Li Ming. —Good morning, Wang Tao.
8．—What’s that over there? —It’s a ball.
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
