past progressive

I ____ talking to my parents when I felt bad

• were

• was

• am

My friends ____ eating lunch when I entered the room

• were

• was

• are

My sister ___ watching tv while she did homework

• were

• was

• is

My parents were sleeping when___

• the thief entered the house

• the thief was entering the house

• the thief enters the house

My wife was working ____ I called her

• while

• when

My brother was listening to the radio while ___

• I worked

• was working

• both

My little sister was watching a movie ____

• when I was calling her

• when I called her

• while I called her

My dog _____ while I saw him

• barked

• was barking

when expresses...

• simultaneous activities

• interruption in the activity

When I was a kid, I ___

• would play soccer a lot

• play soccer a lot

• was play soccer a lot