Past simple vs Past continuous

I _____ (read) a book when I _____ (hear) a strange noise.

I _____ (get) ready for the party when my friend _____ (phone) me.

While they _____ (drive) down Green Street, the police ______ (stop) them.

While they _____ (drive) down Green Street, the police ______ (stop) them.

I _____ (find) this key while I _____ (tidy) my room.

My father and I _____ (play) chess when my cousins _____ (arrive).

My mum _____ (have) tea with her friend when I _____ (arrive).

I was doing my homework _____ my fater came home.

• when

• while

_____ we were watching TV, the lights went out.

• when

• while

_____ you were sleeping, Dave phoned.

• when

• while