the amount of time something lasts

to study or work on a particular subject or skill more than any others, so that you become an expert in it

In Russia the _____ of the school year is about thirty-six weeks. How long is it in your country?

to express disapproval of someone or something

You'll have to ____ all your exams if you want to get into university.

to show that something is very important or worth giving attention to

Our Art teacher is going to _____ us how to do 3D drawings in our lesson today.

She won't ____ the exam because she's the best in the class.

The average ____ for teenage boys in the UK (twelve-thirteen years old) is from 1.47 metres to 1.57 metres. For girls, it's 1.52 metres to 1.60 metres. How tall are you?

to become aware of or understand a situation

an amount of something, often expressed as a number out of 100

the measurement from base to top or (of a standing person) from head to foot