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Lingling: 1．
Xiaoyong: Why did you go there?
Lingling: 2．
Xiaoyong: 3．
Lingling: I helped my grandma.
Xiaoyong: That's great! 4．
Lingling: I went there with my parents.
Xiaoyong: 5．
Lngling: Yes, I did.
| A．Did you have a good time? |
| B．Who did you go there with? |
| C．I was in a village. |
| D．What did you do there? |
| E．Because my grandparents live there. |
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
