My grandparents are old. They told me their life was different many years ago. They lived in a small house in a village. They worked in the fields all day long. They cooked on a fire. They didn't have a television, a radio, or a telephone. They didn’t have enough nice food to eat. There weren't any supermarkets. There weren't many cars or buses then.
1.My grandparents lived in a city many years ago.2.They worked in the fields.
3.They had a television, a radio, and a telephone.
4.There were lots of supermarkets then.
5.There weren't many cars or buses then.
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同类型试题
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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
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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
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