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1. You must ________ (在图书馆里保持安静).
2. I must ________ (听老师的话)at school.
3. We don't ________ (吃喝)in the library.
4. They can ________. (停他们的小汽车)
5. Don't ________ (在草地上走). Walk on the pavement.
6. Please stand ________ (在我的左边).
7. You can use ________ (中间的电梯).
8. Don't ________ (互相追逐)in class.
9. We are ________ (等公共汽车)at the bus stop.
10. We mustn't ________ (在墙上画画). Keep the wall clean.
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
