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| Time | Activity |
| 8:30 a.m. | do morning exercises |
| 9:10 a.m. | have an English class |
| 11:30 a.m. | eat lunch |
| 8:00 p.m. | read a book |
| 8:30 p.m. | listen to music |
1．It's 8:30 a.m. What's Amy doing?
2．It's 9:10 a.m. What's Amy doing?
3．When does Amy eat lunch?
4．Is Amy reading a book at 7:00 p.m.?
5．Is Amy listening to music at 8:30 p.m.?
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
