1、状语从句练习一、基础练习1. We arewatchingTV___wecaughtsightofafriendofours.A.assoonasB.whileC.whenD.once2. Thepriceofdiamondringshasrisensharply_______thepriceofgoldringshasgonedown.A.whenB.asC.whileD.otherwise3. ItisalongtimesinceIlastsawyou.Thissentencemeans_______A.IhadseenyouforalongtimeB.Iha