Task 2
1) I'll ask Jane to call you back at twelve. Her meeting will have ended by then (future perfect)
2) When he retires next year, Adam will have been working here for more than twenty years (future perfect continuous)
3) I'll have more free time after September because the children will have gone to school by then (future perfect)
4) My best friend is doing a 'round-the-world' trip. By this time next week she will have been travelling for more than six months (future perfect continuous)
5) Don't worry. By the time you get here, my mother-in-law will have left (future perfect)
6) Will the team have completed the project in time for the meeting? (future perfect)
7) It's a really long flight. We will have been sitting in the same seats for over fourteen hours so we'll be exhausted when we get there (future perfect continuous)
8) You can't stay here next week. We won't have finished the decorating. (future perfect)