PartIVTranslation
Bymakingvehicleslighterinweightaluminumhasgreatlyreducedtheamountoffuelneededtomovethem,(PassageTwo)
由于能够减轻运输工具本身的重量，铝材能大大地减少驱动它们本身所需的燃料。
暂无解析
Duringthesetenyears,manynewmethodshavebeen___inthefieldofforeignlanguageteaching.
Hegaveusagood____ofhisexperience.
Thatradiocompanyissobigthatithasalotof____inforeigncountries.
Thismountainrangehasmanyhigh_____andfertilevalleys.
PartIVTranslation
Tocoverthemarksofthefire,thebuildingwaspaintedwhite.BeforelongitbecameknownastheWhiteHouse.(PassageOne)
