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