1.They (meet) while they (study) at university
2. I (not listen) when the teacher (explain) the problem
3.We (see) Sue when we (play) in the park
4.When I (get up) this morning it (not rain)
5.What (you/do) when I (phone)?
6.What (you/ do) last weekend?
7.I (not go) to school yesterday because I (be) sick

1. They (met) while they (were studying) at university. 2. I (did not listen) when the teacher (was explaining) the problem. 3. We (saw) Sue when we (were playing) in the park. 4. When I (got up) this morning it (was not raining). 5. What (were you doing) when I (phoned)? 6. What (did you do) last weekend? 7. I (did not go) to school yesterday because I (was) sick.