Ответ на вопрос: 1. Task 1. Complete the gaps with Present Perfect or Present Perfect Continuous in groups: I … (study) hard for my exams. People … (celebrate) ‘Buy Nothing Day’ for about three decades. We … (work) hard on it all week. All the students … (bring) in a few items from home. We … (decide) to do simple things on Buy Nothing Day. We … (walk) to school instead of taking the bus. We … (ask) our parents not to go to the supermarket. He … (know) Alice for years. She … (work) all day. She is tired now.