Use the preterit BE+ing

Yesterday at 8.00 p.m...

...what you ? (do)
-I TV. (watch)

...what Susan ? (do)
-She . (cook)

...what John and Margaret ? (do)
-They (surf) on the internet.

Paul (do) his homework and Sally (help) him.

Michael (not chat) on MSN and his parents (not listen) to music.