Past Simple vs. Past Progressive
Susie _________ (watch) a film when she _________ (hear) the noise.
was watching, heard
Yesterday I _______ (go) to the library, next I ______ (have) a swim, later I ______ (meet) Julie for coffee.
went, had, met
We _______ (play) basketball while they _________ (play) football.
were playing, were playing