请看NMET关于"—ever"用法的几道单项选择题：①If we work with a strong will, we can overcome anydifficulty,______ great it is.（'95NMET）A.what B.how C.however D.whatever答案：C。"however"，adv.意为"无论如何"、"不管怎样"。②It is generally considered unwise to give a child_____he or she wants.（'97NMET）A.however B.whatever C.whichever D.whenever 答案：B。"whatever"，pron."无论什么"、"任何东西"之意..