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B: Good morning, Miss Li.
A: Sit down, please. Open your books, please.
B: Yes, Miss Li.
A: Where’s your book, Su Hai?
C: Er …
A: Is it in your schoolbag?
C: No, it isn’t.
A: Is it in Su Yang’s schoolbag?
C: Oh, yes!
1．B is Miss Li.
2．C is Su Hai.
3．It is in the afternoon.
4．Su Hai is in class.
5．Su Hai’s book is in her schoolbag.
6．Su Yang finds (找到) Su Hai’s schoolbag.
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
