Night________(fall),wehurriedhome.
Howlong________they________(dig)theditch?
Themorewelookedatthepicture,________.
He________methathedecidedtoleaveonMonday.
Agreatnumberofsmallpowerstations________(setup)intheircounty sinceliberation.
________(fail)severaltimes,theyneedsomeencouragement.