1.Boxwood(黄杨木)isclosegrained,hard,andpolishesnicelywhenwaxed.
(A)carves(B)bleaches(C)shines
2.They'vebeenchargedwithpossessinggunsandexplosives.
(A)running(B)having(C)manufacturing
3.Automobileexpertshaveshownthathalogen(卤素)headlightspenetratethickfogmoreeffectivelythantraditionalincandescentheadlightsandthushelptoreduceaccidents.
(A)dissolve(B)perceive(C)pierce
4.Glycogen(糖原)constitutesthebody'spoolofglucose,theprimeenergy-producingsubstanceusedbycells.
(A)container(B)product(C)supply