0
Vincent Teo Posted 17 years ago
Grammar

Of

Can I say,

(a) It has a lifespan up to 50 years. / has a lifespan of up to 50 years.

(b) It grows to a length 2 to 3 metres / grows to a length of 2 to 3 metre long.
  

Top answer

Hi VT I would use "of" in both of your sentences.

  • Hi VT I would use "of" in both of your sentences.
Free · every Monday

Get the Weekly English Kit 📬

New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.

2 Answers
0
Hi VT

I would use "of" in both of your sentences.
0
You always need "of" to connect a category of measurement with a number of units.

a length of 12 metres
a period of 6 months
a temperature of 65 degrees
a distance of 400 light-years
a weight of 35,000 pounds

CJ

Related Questions