Thedirectorrecommendedthatshe________(study)moreEnglishbeforegoingabroad.
Ipreferthisdiagram________thatone.
I prefer this diagram ________ that one.
He fell asleep immediately last night; he must ________ (be) very tired.
Agreatnumberofsmallpowerstations________(setup)intheircounty sinceliberation.
