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A: Mum, it' s Teachers' Day. I' d like a card for my teacher.
B: OK, here's a green one on the desk.
A: Thank you, Mum. What' s the time, please.
B: It ' s seven now.
A: Oh, I' m late. Where' s my bag?
B: It' s on the bed.
A: Mum, shall we go by bus ?
B: OK. Let' s close the door.
1．It' s Teachers' Day. （
2．His bag is on the desk. （
3．They go to school by bike. （
4．It ' s eight now. （
5．The card is on the bed. （
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
