Задание 1. Раскройте скобки, употребив время Past Simple или Present Perfect. 1. Our manager (to delegate) this important

1. Our manager has delegated this important work to some of us this month. 2. The Head of the Department promised to reward his office-workers for their project at the last meeting. 3. The Board has not taken the decision yet. 4. The manager has just explained how to do the work. 5. When did the accountant present the necessary information? – He has just presented it.