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（_____） 1. A. I like beef. B. I’d like beef. C. I don’t like beef.
（_____） 2. A. Yes, he is. B. No, he can. C. Yes, she is.
（_____） 3. A. Yes, they are. B. No, there aren’t. C. No, there are.
（_____） 4. A. Monday. B. Math. C. Miss Wu.
（_____） 5. A. She can sweep the floor. B. He can sweep the floor.
C. She often sweeps the floor.
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
