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Thirty years ago, I was a little girl. I lived in a small house with my parents. We couldn't eat too much, because we didn't have enough food. There weren't any televisions or cars. But now we live in a tall building. We can watch TV every day. We can eat delicious food. We can play games on the computers too. There are many cars in my city. And our city is more and more beautiful. Our country is getting richer(富裕) and stronger (强大). I love my country. I love my city. I am happy every day.
1．They lived in a big house thirty years ago.2．They didn't have enough food thirty years ago.
3．They can play games on the computers now.
4．There were many cars in my city thirty years ago.
5．They can eat delicious food now.
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
