Completeaza propozitiile cu forma corecta a verbelor:

I...1...down the road when.

 I ..2....a young man in a front of me.

1. a) walk    b) walked  c) was walking
2 . a) saw    b) see      c) had seen

He was so absorbed in what he....3.....that he.....4......me.
3. a) was doing  b) did    c) does
4. a) didn't notice  b) doesen't notice    c) hasn't noticed