1) His father worked at a plant.
2) I often saw them in the park.
3) Did your pupils read English books?
4) Her mother taught chemistry at school.
5) We did not know his address.
6) He got up, washed, dressed, had breakfast and went to school.
7) Did the doctor speak English?
8) We understood the rule.
9) My friend did not like such films.
10) In the summer we picked berries and mushrooms.
11) They did not change trains there.
12) This worker repaired his car himself.