In 1900, the energy derived from burning petroleum was only four percent ______ of coal.

Whilecrossingthemountainarea,allthemencarriedgunslestthey______bywildanimals.

On arriving home, the boy told his parents about all the ______ which occurred in his dormitory.

JeansaresohotthesedaysthatbignamestarsappearonTVadvertisingfortheir______brands.

Onarrivinghome,theboytoldhisparentsaboutallthe______whichoccurredinhisdormitory.