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Last Sunday was Tom's birthday. Sam, Daming, Lingling and Amy got together. Tom was interested in reading books. So Amy and Lingling bought him a lot of funny books. Daming bought him a cap. It's very beautiful. Tom liked it very much. Sam bought him a toy panda. It's very cute. They made a cake together, then they ate it. It's very nice. They were very happy.
1．Last Sunday was Tom's birthday. （2．Tom was interested in reading books. （
3．Daming bought Tom a cap. （
4．Sam and Lingling bought Tom a lot of funny books. （
5．They bought a big cake. （
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
