Use the Future Perfect Tense instead of the infinitives in brackets. 1. I hope they ... (build) this bridge by the end of the year.2. What... you ... (do) by the time I come back?3. By the end of this year Mr Brown ... (work) for this company for fifty years.4. They ... (pick) all the harvest by the end of September.5. ... your guests ... (come) by five?6. I think I ... (pass) my driving test by the end of the week and we can go by car.7. He used to have black hair but now I think he ... (get) completely grey by his forty.8. We are trying to save some money. By the end of the year we ..gain) 2, 000$.9. This disease is spreading so fast. By the end of the week more than hundred people ... (fall) ill.10. We ... (paint) the whole house by the time they come back from their holiday.​