By 2050, space agencies ________ autonomous probes into deep space for thirty years., will have been launching, will have launched, will launch, will be launching, Before the end of this century, our structural approach to rapid urbanization ________ completely., will have been evolving, will have evolved, will evolve, has evolved, Space agencies will have started true interplanetary journeys by 2060, ________?, won't they, will they, haven't they, don't they, By 2045, bioengineers ________ human lifespans through space medical research for over a decade., will have been enhancing, will have enhanced, will enhance, are enhancing, A spacecraft won't have successfully revolved around that distant comet by next month, ________?, will they, won't it, will it, won't they, By the time the new planetary law passes, most global citizens ________ the necessity of cosmic exploration., will have been embracing, will embrace, are embracing, will have embraced, By next Friday, the satellite ________ around the new space probe for exactly 48 hours., will have revolved, will have been revolving, is revolving, revolves, Because of technical delays, engineers ________ the new interplanetary rocket before the end of this year., won't have launched, won't have been launching, don't launch, won't launch, Smart cities will have been evolving to manage rapid urbanization for decades by 2060, ________?, will it, will they, won't it, won't they, By the end of his mission, the astronaut ________ his physical performance through advanced zero-gravity training., will be enhancing, will have been enhancing, will have enhanced, enhanced

Future Perfect Simple vs Prograssive

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