Раскройте скобки употребив Present Simple - Future Simple
1. Before he (to leave) for London, he (to spend) a week at a health resort.
2. We (to gather) in the office when our head managers (to come) back from business trip.
3. If you ( not to hurry) you (to miss) the train.

Before he leaves for London, he will spend a week at a heath resort We will gather in the office when our head managers come back from business trip If you don't hurry you will miss the train