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（1）A. Yes, it is .
B. It is in September.
C. It is in the afternoon
（2）A. He is doing an experiment.
B. He often does an experiment.
C. We like doing an experiment.
（3）A. I like Jan. best.
B. I like summer best.
C. I like football best.
（4）A. They can swing in the trees.
B. They can swim in the river.
C. They can jump like a rabbit.
（5）A. It’s is Monday .
B. It is spring.
C. It is July 5th.
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
