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| A. Let's go to the playground. B. Hurry up! C. What time is it now? D. It's time for English class. E. It's 7: 30. It's time to go to school. |
1．你想和朋友一起去操场时，你会说：
2．要迟到了，你会对同伴说：
3．七点半了，该上学了，妈妈会对儿子说：
4．小红问你现在几点了，她会说：
5．到了上英语课的时间了，你会对同桌说：
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
