Очень безотлагательно! Fill in the gaps with the correct form of

Очень безотлагательно! Fill in the gaps with the correct form of the verbs in brackets.
1. The IT specialist ............................... (do) something to your computer while I was typing my letter yesterday.
2. Hurry up, please! Our bus ............................... (leave) in quarter an hour.
3. Don't worry, I ............................... (buy) some bread on my way home later on.
4. You'd better consult a doctor because you ............................... (suffer) from bad headaches for quite a long time.
5. I ............................... (go) to see Michael yesterday afternoon.