Rewrite sentence with the word in brackets: 1. Online purchases might be delivered by drones in the future. (conceivably) 2. Architects are assumed to be employing smart technology in their latest design. (appear) 3. A problem with driverless cars will be deciding how to insure them. (conceivable) 4. Immigration is conceivably one of the most pressing concerns of our time. (alleged) 5. Designers are likely to enlarge television screens to an ever greater size. (could) 6. Nuclear power may not solve the energy crisis we are facing. (unlikely)