Thank you very much —Not at all.i was____ glad to help.A.too B.only too c.not so D.much B

Thank you very much —Not at all.i was____ glad to help.A.too B.only too c.not so D.much B
too to 之间加积极意义的词可以表示非常啊
."too...to"结构中带有表示某种心情或描绘性的形容词或副词，如ready,apt,eager,satisfied,inclined,kind,willing,easy,anxious等加动词不定式结合成一个不可分割的状态、态度、倾向或心情等，并且其后的不定式不是说明too的具体内容，而是修饰形容词，故不定式不再表示结果。