Choose the right forms of the verbs in brackets to complete the sentences.
I (watched / was watching) was watching the film when my parents ( came/were coming) came in.
She (had/was having) tea at 5 o’clock yesterday.
When the storm (began/was beginning) , Polly (left/ was leaving) the theatre.
While Bob (drove/ was driving) home, it ( snowed/was snowing)hard.
She (played/was playing) the piano while he (did/ was doing) the flat.
Betsy (walked/ was walking) the dog while it ( rained/ was raining).
When Alec (ran/was running) along the street, he (saw/ was seeing)his neighbour.
My grandparents (worked/were working) in the garden at 5 o’clock yesterday.