________he insists on doing that,he will lose many friends.A.WhetherB.IfC.WhileD.Although
网友回答
B解析分析:从句的时态是insists,主句的时态是will lose,if引出的条件状语是主句用将来时,从句用一般现在时。He insists on doing that和he will lose many friends之间在逻辑上的关系是条件和结果。whether和if只有在引出宾语从句时有时可以互换(解释为“是否”),此处可以用if,但不能用whether.