He fell asleep immediately last night; he must ________ (be) very tired.
have been
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Agreatnumberofsmallpowerstations________(setup)intheircounty sinceliberation.
Tosucceedinascientificresearchproject________.
Themorewelookedatthepicture,________.
Thosewho’dliketovisittheexhibition________(sign)yournameshere.
Matteristhename________(give)toeverythingwhichhasweightandoccupiesspace.
