GRAMMAR OF UNIT 4

Present perfect
For:   I haven't visited Madrid for three years
Since:   have you been at this schoolsince you were 12?
Already:   she has already ask me.
Yet:   we haven't had breakfast yet.
Still:   they still haven´t been to London

Past simple
Yesterday:  I didn't do my exam yesterday.
In:  Did you go to the beach in summer?
Later:  He saw her half an hour later.
Ago:  We moved to France two years ago.

Subject questions
Who invented the mobile phone?
What happened next?
Who used the computer last?

Object questions
When did Sarah buy her laptop?
How do you use the app?
What did people do before they had mobile phones?

Present perfect with ever, never and just
Ever:  Have you ever been to America?
Never:  I've never had a problem with this computer
Just:  Sammie has just bought a new TV