1.the children were playing in the house at 6 o'clock ? 2.john was sitting in the house when tom came ? 3.mary was doing her lessons when the telephone rang ? 4. the teacher was speaking at that moment ? 5. the student was reading when the teacher interrupted him? 6. we were having our dinner when we heard the news? 7. i was writing the letter when my frieng came? 8. the child was crying when i came? 9. mother was cooking when the bell rang? 10. he was driving when we saw him ?