what do you want to be one day?

What do you want to be one day
如果你想成为老师：
I want to be a teacher in the future.Because I can enrich myself with knowledge and learn how to improve myself to get on well with my students
如果你想成为作家
I want to be a writer one day.Because I love writting different articles including novels,poetry and so on.
如果你想成为一名医生
I want to be a doctor in the future.Being a doctor can be very difficult,but I think it is a very noble profession which could save a lof of lives or helping others.That's why I want to become a doctor one day.

有一天..你想成为什么？ I want to be a taacher to be 后 +职业

你就回答你的理想或者你以后想成为什么就行了。

A excellent teacher

你将来想成为什么？

I want to be a singer.