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It's eight o'clock in the evening. The Wangs are at home. Mr. Wang is reading a newspaper. Mrs. Wang is washing the bowls in the kitchen. Alice is sitting on the floor. She's playing with her doll. Eric is drawing a monkey in his bedroom. Grandma is tired. She's sitting in the sofa. The TV is loud, but she's sleeping.
1．The Wangs are in the sitting-room. （2．Mr. Wang's washing the bowls. （
3．Alice is playing with her doll. （
4．Eric can draw a monkey. （
5．Grandma is watching television 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
