______ bright a talker you are, there are time when it’s better to remain silentA.WhateverB.HoweverC.WheneverD.Whoever
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B解析试题分析:考查让步状语从句。句意:句意:无论一个讲话者有多聪明,也有应该保持沉默的时候。Whatever无论什么,作主语或宾语;however无论多么,作状语;whenever无论何时,作时间状语;whoever无论是谁,作主语。这里修饰形容词bright,用however,相当于no matter how。故选B。考点:考查让步状语从句