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My school looks different now. There was a small playground before. Now there is a big playground. There weren’t any trees on the playground, and there are lots of trees and flowers now. There was a small river behind our school before. The water was clean. We could swim in it. Now there isn’t a river，there is a pond. Our teacher tell me: “there will be some fishes in the pond.”
There are no classes on Sundays. We stay at home and watch TV. My father and mother go to shops on Sundays. They all like China.
( ) 1. There are lots of trees and flowers.
( ) 2. There was a big river behind our school before.
( ) 3. Now we can swim in the river.
( ) 4. There will be a pond next year.
( ) 5. In China, the students can stay at home and watch TV on Sundays.
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
