Uzupełnij zdania, używając czasowników be, live, not activate, not turn off, provide, work, w odpowiedniej formie.

1 Slide rules are believed _____________very useful back in the old days.
2 It is often thought we ________ on Mars one day.
3 Instruction manuals are expected__________ the users of various devices with some technical details.
4 NASA scientists are assumed ___________space mission at the moment.
5 It is suspected that the fuel supply___________ properly.
6 The security guard is reported_____________ the machine before going home the other night.