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（1）A. It’s sunny.
B. It was Sunday.
C. It was sunny.
（2）A. I went to Harbin.
B. I went by plane.
C. Next holiday.
（3）A. He read a book.
B. He reads a book.
C. He is reading a book.
（4）A. He likes doing sports.
B. He is like doing sports.
C. He is tall and strong.
（5）A. My brother feels bored.
B. Yes, he’s going on a trip.
C. No, he didn’t.
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
