今年11岁 英语怎么说？？

I am eleven years old this year.

I'm eleven-year-old this year

I'm 11 years old this year.

I am eleven years old this year

单独使用：
I am eleven this year 我今年11岁
I have been eleven this year already. 我今年已经11岁了。
I'm a 11-year-old boy/girl this year 今年我是一个11岁的男孩/女孩。

放语境里使用：
I'm at the age of eleven ... 在我11岁的时候……
When I am eleven this year... 今年当我11岁的时候……
As I am eleven this year 像我今年11岁
Even though I am eleven this year... 尽管/虽然今年我(才)11岁
I'm not only eleven this year,but also...今年我不但11岁了，而且……

at the age of 11