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（______） 11. It's twelve o'clock. It's time for __________.
A. dinner B. breakfast C. lunch
（______） 12. It's ________ in New York.
A. warm and rainy B. cold and rainy C. cool and windy
（______） 13. The teachers' office is on the _______floor.
A. first B. second C. next
（______） 14.Look at that dress. It’s very _________.
A. small B. pretty C. cheap
（______） 15. ________ scarves are nice. Whose are they?
A. That B. They C. Those
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
