While I ... to the radio, the telephone ... *
listened/was ringing
listened/rang
was listening/rang
was listening/was ringing
He ... his leg when he ... in the Alps. *
was breaking/skied
broke/was skiing
was breaking/was skiing
broke/skied
They ... to the orchestra when the pianist ... ill. *
were listening/was becoming
listened/was becoming
were listening/became
listened/became
Ann (played/was playing) the piano while Tom (painted/was painting) а picture. *
played/was painting
was playing/was painting
played/painted
was playing/painted
We ... an accident while we ... for the bus. *
saw/were waiting
were seeing/waited
were seeing/were waiting
saw/waited
She ... quietly at her desk when suddenly the door ... *
was working/was opening
worked/was opening
worked/opened
was working/opened
was listening/rang
broke/ was skiing
were listening/ became
was playing/ was painting
saw/ were waiting
was working/opened