好少野ga咋,,幫下我啦

Firstly, I would like to say "Happy birthday" to your mum. If I were you, I will definitely hold a great party for her , then, I will buy her things that she likes the best. In that way, I am sure she will be very happy and feel suprised too.

Finally, I really hope my suggestion below can help you.

首先，我在這裡祝你媽媽生日快樂。如果我是你，我一定會舉行一個盛大的生日派對，之後，我就會購買她最喜歡的東西，因為這樣又可以令到感到開心，又可以給她一個最大的驚喜，所以我會這樣做。
最後，我希望以上的建議可以幫助到你。

First of all, I'd like to wish your mum a Happy Birthday. If I were you, I would hold a grand birthday party for her. Next, I would buy her something she likes the best. I think these will be a nice surprise to her and she will be very happy. So, these are what I'll do. Finally, I hope you'll find my suggestions helpful.

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以上是按原文的翻譯，而且是合英語文法的，希望對你有幫助。

Hey say happy birthday to your mum. I am happy to do whatever surprises her if i was you such as holding a birthday party, plus buy something she likes most.
I hope all of those suggestions would help in any way.

First of all, may I wish Happy Birthday to your mother. If I were you, I would arrange a grand birthday party. I would also buy her a gift that she likes most. By doing so, it will make her happy and give her the greatest surprise.

Lastly, I hope the suggestion above will be of help.