Раскройте скобки, употребляя глаголы в соответствующем времени групп Simple, Continuous и Perfect страдательного залога.
3 By six o’clock yesterday the work (to finish).
4 He often (to invite) to our parties.

3 By six o’clock yesterday the work had been finished.-Past Perfect Passive4 He is often invited to our parties-Present Simple Passive