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1. Mr. Lee ________ (be) late for work this morning. He ________ (go) to sleep late last night and he ________ (can not) get up on time this morning.
2. I think you can ________ (reuse) this bottle. It ________ (be) a beautiful vase.
3. —Why ________ Lucy ________ (cry)?
—She can’t find her dog. It ________ (be) here half an hour ago.
4. You have a lot of ________ (paper). Give me a piece, please.
5. —Is this pen holder ________ (your)?
—No, it’s my sister’s.
6. There isn’t ________ (some) milk in the fridge.
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
