Tom ________ (read) a book while his brother ________ (play) computer games.
Tom was reading a book while his brother was playing computer games.
I ________ (not watch) TV when my friend ________ (call) me yesterday.
I wasn’t watching TV when my friend called me yesterday.
________ (Conor / feel) surprised when they ________ (forget) his birthday?
Was Conor feeling surprised when they forgot his birthday?
We ________ (leave) the house when we ________ (see) an accident.
We were leaving the house when we saw an accident.
It ________ (get) dark when we ________ (arrive).
It was getting dark when we arrived.
After I ________ (switch) off the light, I ________ (hear) a strange noise.
After I switched off the light, I heard a strange noise.
All the time that David ________ (talk), I ________ (not listen) to him.
All the time that David was talking, I wasn’t listening to him.
When the teacher ________ (come) in, the students ________ (do) a grammar exercise.
When the teacher came in, the students were doing a grammar exercise.
While I ________ (cook) dinner, my phone suddenly ________ (ring).
While I was cooking dinner, my phone suddenly rang.