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It’s December 24th today. It’s Mary and Betty’s birthday. They are American girls. They are twins. They’re in the same school and come home together.
There’s a birthday party in their home this evening. Their parents, Mr. and Mrs. White, are very busy. Twelve children are at the party. Mary and Betty have got a lot of birthday presents from their parents and friends. The presents are all lovely.
Now everything is ready. Mary begins to cut the birthday cake. The children sing “Happy birthday to you.” They’re having a good time.
1．Tomorrow is Christmas Day. （_____）2．Betty is Mary’s brother. （_____）
3．Betty and Mary’s parents sing “Happy birthday to you” with the children. （_____）
4．All of the children are happy at the party. （_____）
5．Betty and Mary are in the same class. （_____）
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
