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（1）A: _______that ________?
B: Which boy?
A: _________ _________ in the shirt.
B: Sorry, I don’t know.
（2）A: What’s __________ job?
B: He’s a ______________.
A: How old is he?
B: ___________ ___________.
（3）A: Can I help you?
B: I’d like some peaches.
A: _________ __________ kilos?
B: Three kilos, please.
_________ _________ are they?
A: Six yuan.
（4）A: What’s in the bookcase?
B: _________ __________ some books.
A: ________ is the football?
B: It’s _________ the bookcase.
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
