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Hello! I'm Jack. I am in Grade Five. Today is Sunday. I stay at home. I had a lot of fun yesterday. In the morning I visited the museum with my friend, Jim. We learnt a lot about history. It was very interesting. At the lunchtime, I shared my lunch with Jim in the park. In the afternoon, we were in the playground. We played baseball. We went home at 4 :30 p.m. What a happy day!
1．Jack is in Grade Five.2．Yesterday was Saturday.
3．Jim was Jack's friend.
4．Jack and Jim went to the park in the morning.
5．Jack and Jim played football in the playground.
6．Jack and Jim were happy yesterday.
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
