1. what is helen doing in the kitchen? (to cook) 2. what were you doing in the shop? (to buy) 3. what is she doing with the dress? (to try on) 4. what was ann doing at the railway station? (to meet) 5. why were the children making such a terrible noise? (to fight) 6. why isn't she sleeping? (to wait for) 7. why are you speaking in a whisper? (to sleep) 8. why was peter playing the piano so late? (to rehearse) 9. what was bill doing here? (to look for) 10. what were you speaking about when i came? (to discuss).

1. What is Helen doing in the kitchen?  She is cooking. 2. What were you doing in the shop? I was buying food. 3. What is she doing with the dress? She is trying on the dress. 4. What was Ann doing at the railway station? She was meeting her friend. 5. Why were the children making such a terrible noise? They were fighting. 6. Why isn't she sleeping? She is waiting for her son.7. Why are you speaking in a whisper? My baby is sleeping now. 8. Why was Peter playing the piano so late? He was rehearsing. 9. What was Bill doing here? He was looking  for a book. 10. What were you speaking about when I came? I was  discussing my future travel.