Modal Verbs ( Must, Have to, Should)

When we were at school we .... wear a uniform.

You ...  be an expert to use the basic functions of program.

You ... to tell her that you are sorry.

We ... go to the meeting. Why didn't you go?

I ... wear glasses, I still can see perfectly well.

We went to bed right after dinner because we ... get up early the following day.

We ... go for a drink one day.

You ... take any money. It wasn't necessary.

What are you doing? You ... be here!

We ...  talk to each other because it was an exam.

You ... apologise; it isn't necessary.

You ... tell the boss what happened, or he'll fire you.