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It was Saturday yesterday. Jack was very busy. In the morning, he got up at six twenty. He did his homework in the morning. Then he cleaned his bedroom. After that, he helped mum cook lunch. They had vegetables and fish for lunch. After lunch, Jack went to the zoo with his good friend, Tom. They saw many animals in the zoo. They took pictures there, too. Jack liked the elephant and Tom liked the lovely monkey. They were very happy yesterday.
（1）Jack was busy and happy on Saturday.
（2）Jack did his homework in the morning.
（3）Jack cooked lunch for his Mum.
（4）Jack and Tom went to the park in the afternoon.
（5）They took pictures and saw animals there.
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
