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It’s five in the afternoon. The children come back from school. Su Yang is playing the guitar. He mother is cooking dinner and her father is reading newspapers. Liu Tao is having dinner with his parents. He is very hungry, so he eats a lot of noodles and a glass of juice. Mike playing chess with Tom in the living room. Helen is reading a storybook in her bedroom. Mr Green and Mrs Green are cooking dinner together. Jean and Jenny are playing with their friends in the park near their home. Wang Bing is doing his homework. Nancy is watching a film on her computer.
1．The children are all at home.2．Su Yang is playing the piano.
3．Liu Tao is eating noodles for dinner.
4．Mike and Helen are not helping their parents.
5．Nancy is at the cinema.
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
