Bozena:
1. WHILE/AS I was teaching English, the bell rang and students ran out of the classroom.
2, I was teaching English WHEN the bell rang and students ran out of the classroom.
3. This time last Tuesday I was teaching you;-)
4. I danced and then I went for a walk.
Aila:
1. While I was studying English, the battery of my laptop ran out.
Asta:
1. While I was removing snow, it was snowing.
2. I was doing homework when my puppy peed on the floor.  
Eila:While I was talking on the telephone, my cellphone stopped working.
1.When I was talking with my friend my cellphone started to ring.
Jarmo:
1.While I was flying to Germany, you were studying.
2. When I was driving to Jyväskylä, there was a  traffic road accident/
Nina: 
1. While I was washing the dishes, the phone rang.
2. When I was 
Seppo:
1.
Ulla:
1
Where did you study?
Where did you work earlier?
Untli now: I have worked/have been working for 30 years now.
I'm experienced IN on that.
after IN one week (time)/ IN two weeks' time
I work as a secretary in a company...
I work FOR K-market.
What kind of sofware  HAVE you have used?
What kind of activities DO you do?
Why are you applying FOR this position?
in AT California University
I'd (I would) like to change it to FOR another company.
I'm not very good on AT (BrE) IN (AmE) that.
other people persons