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( ) （1）A. Yes, speaking. B. Yes, it is. C. No, he isn’t.
( ) （2）A. She’s doing her homework. B.She’s going to do her homework.
C. She’s in the room.
( ) （3）A. It’s on the desk. B. It’s mine.
C. I’m going to see an opera.
( ) （4）A. He’s going there with Tom. B. He’s going to see a film.
C. He is going to the cinema.
( ) （5）A.I usually get up at half past six. B. I am going to go to bed.
C.I usually go to bed at ten in the evening.
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
