STRUCTURE OF THE PAST PROGRESSIVE

WH QUESTIONS

WH + AUXILIAR + SUBJECT + TO BE + VERB ING + COMPLEMENT

                               (were)

                               (was)

EXERCISES

1 - http://www.ego4u.com/en/cram-up/tests/past-progressive-1
2 - http://www.ego4u.com/en/cram-up/tests/past-progressive-2
3 - http://www.ego4u.com/en/cram-up/tests/past-progressive-3