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⑴It is a duck.(改为一般疑问句)
________ ________ a duck?
⑵That isa_dog．(就画线部分提问)
________ ________ that?
⑶There are five cats in the room.(改为否定句)
________ ________ five cats in the room.
⑷Is that a horse over there？(作否定回答)
________，________ ________．
⑸We call ita_lamb．(就画线部分提问)
________ ________ ________ call it?
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
