Ask for more information example: i was writing a letter (where?)-

1) He was buying a present for Helen. - When was he buying a present for Helen?
2) We were playing ping-pong. - Where were you playing ping-pong?
3) They were skating. - Where were they skating?
4) It was raining. - When was it raining?
5) We were staying at a hotel. - Why were you staying at a hotel?
6) We were doing the city. - Whom were you doing the city with?
7) She was speaking to Mr. Green. - Why was she speaking to Mr. Green?
8) She was visiting my grandparents. - When was she visiting my grandparents?
9) You were swimming. - Where were you swimming?