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（1）She helped her mother yesterday.(变一般疑问句)
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（2）The bad man took Maliang’s paintbrush.(变否定句)
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（3）They camelast week.(就画线部分提问)
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（4）He is watching TV. (变一般疑问句)
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（5）I went to the park.(就画线部分提问)
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（6）They saw lots of flowers.(就画线部分提问)
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（7）Tom broke his toy. (变一般疑问句)
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（8）Linging usually plays the flute on Sundays.(变一般疑问句)
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（9）Chinese people invented paper.(就划线部分提问)
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（10）He will go to the zoo tomorrow.（变否定句）
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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
