________withthesizeofthewholeearth,thehighestmountainsdonotseemhighatall.
Itisusefultoscience_______theearthasanobjectinspace.
Wemust______thattheexperimentiscontrolledasrigidlyaspossible.
________somanypeopleintheUnitedStatesbeenoutofworkastoday.
Weregretto________thatitmaynotbepossibletodealwitheveryrequest.