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B: It was a busy one.
A: Why? 2．
B: I cleaned the room, washed clothes and then visited my grandparents. They live in a village. It’s very far from my home.
A: 3．
B: That’s right.
A: 4．
B: I went shopping with my mum and then cooked meals for my family.
A: Oh, I see. 5． You’re helpful.
B: Thank you.
| A．They must be happy to see you. |
| B．How was your weekend? |
| C．What did you do on Saturday? |
| D．That was really a busy weekend. |
| E．What did you do on Sunday? |
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
