– What _______you (do)_________ when the accident (happen)__________?
-I (drive)_________ on the motorway.
– Sebastian (arrive_____) at Susan’s house at 9:00 PM, but she (not be) _________there. She (study) __________at the library for her French exam.
– When I (walk) _______into the busy office, the secretary (type) ________a letter, several clerks (work)_________ at their desks, and the manager (talk) __________with a customer on the phone.
– At 10 o’clock yesterday evening John (work)__________ at his computer when the lights (go) _________out. He (stop) _______working and he (leave ) ______his office.
– Jill (listen) _________to music when she (hear) __________a strange noise in the kitchen.
– I (not want)_________ to disturb you while you (sleep)__________.
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http://www.ejerciciodeingles.com/ejercicios-distinguir-past-simple-past-progressive/
