_____,hewouldnothaverecoveredsoquickly.
Ithappenedinfrontofafruitandvegetable____inmyneighborhood.
Henoticedthehelicopterhoveringoverthefield.Thentohisastonishment,hesawaropeladder_____outandthreemenclimbingdownit.
ProfessorJohnsonissaid_____somesignificantadvanceinhisresearchinthepastyears.
Modern____perhapscausesmoreproblemsthanitsolves.
