Ответ:

Why didn't you do your homework? - I was visiting (Present Continuous) my granny.

Where does Mr. Ross (live)? - I don't know (Present Simple).

Last Friday she did not drink (Past Simple) coffee.

Peter usually comes (Present Simple) home at 5.

Anna and Lena are playing (Present Continuous) chess now.

It was snowing (Past Continuous) at 5 yesterday.

I am writing (Present Continuous) a letter to my friend at the moment.

Where are they going (Present Continuous) now?

We do not wear (Present Simple) uniform at school.

They went (Past Simple) to London 3 years ago.