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假如你是李明，你的朋友Jack给你发邮件请求你的帮助。请根据邮件内容进行回复。
要求：
①逻辑清晰，内容完整，书写规范；
②回复内容至少包含三条建议；
③词数：30 左右。开头结尾已给出，不计入总词数。
| Dear Li Ming, I spend all my weekends playing computer games and my mother is very angry with me about it. I want to make a change. Could you give me some advice? Jack |
Dear Jack,
_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
I hope my advice can be helpful to you.
Li Ming
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
