Iftheoperation________carefullyprepared,itwouldnothavebeensuccessful.
Havingdecidedtorentaflat,we________contactinghousingagenciesinthecity.
ThefunctionsofinstitutionsofhighereducationintheU.S.are________.
Thevehiclewastravelingatspeeds________90milesperhour.
________，hehadnotimetorest.
