100. 我爺爺是奔75的人了。

[誤] My grandpa is running for seventy-five.

[正] My grandpa is getting on for seventy-five.

注：run for 有“競賽，競選”之意，如：run for Congress（競選國會議員），run for the presidency（競選總
統）等。而 get on for 才表示“接近”，它通常用進行時態，后面一般跟年齡或者時間，如：It's getting on for midnight（快到半夜了）等。

(1). push thirty[forty,etc.]已經快到三[四...]十歲了：
She would like you to think so, but she's pushing thirty.
You wouldn't think so to look at him, but he's pushing 40.
(2). get on for[towards]快到（某時間），快（多少歲）：
It's getting on for nine o'clock.
He must be getting on for forty now.
Here you are getting on toward thirty.
(3). 年齡的一些說法：
1) I'm twenty.（常用）
2) I'm twenty years old.（常用）
3) I'm twenty-year-old.（不常用）
4) I'm twenty years of age.（書面）
5) I'm aged twenty (years).（書面）
6) My age is twenty (years).（不常用）
7) I come into the age of twenty.（不常用）
8) I'm in my teens.（不常用）
in one's early teens（不常用）
在十三四歲年紀
not yet out of one's teens（不常用）
還沒有到20歲