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Dad, Mum and Tom go to the supermarket near their house. There is food, fruit, meat and vegetables in the supermarket. Tom buys two pens, three pencils and a football. One pen is seven yuan. One pencil is two yuan. One football is ten yuan. Dad and Mum buy twelve eggs, some rice, peanuts and sweets.
They put the things in the car and go home. They're very happy.
1．Tom's home is near the supermarket.2．Tom buys a basketball.
3．Three pencils are two yuan.
4．Dad and Mum buy some meat.
5．They go home by car.
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
