Put the verbs into the correct tense (simple past or past continuous ).
1) i (jog) in the park, when two squirrels (cross) my way.
2) robert (fall) off the ladder when he (pick) cherries.
3) archimedes (discover) the theory of buoyancy while he (take) a bath.
4) when we (travel) around ireland, we (meet) some very nice people.
5) while she (speak) on the phone, the milk (boil) over.
6) when i (leave) the house this morning, the sun (shine) .
7) caroline (burn) her hand when she (iron) her clothes.