Simple past or Past continuous?
1 When I (do) the washing-up, I (drop) a plate.
2 While Tom (play) the piano, his mother (do) the washing-up.
3He (drink) some juice and then he (eat) a few chips.
4I (have) dinner when I suddenly (hear) a loud bang.
5When my father (work) in the garden, an old friend (pass) by to see him.
6She r (go) to school, (take) out her textbook and (begin) to learn.
7When it (start) to rain, our dog (want) to come inside.
8When Jane (do) a language course in Ireland, she (visit) Blarney Castle.
9When I (be) on my way home, I (see) an accident.
10 I (not understand) what they (talk) about.

1) was doing, dropped2) was playing, was doing3) was drinking, ate4) was heaving, heard5) was working, passed6) went, took, began7) started, wanted 8) was doing, visited9) was, saw10) didn't understand, are talking