Question

It was _____ opportunity to miss

1. A.
   too good an
2. B.
   a too good
3. C.
   too a good
4. D.
   too good

Answer 1

A
句意“这是一个太好的机会，以至于不能错过。”too...to句型中的too是副词，后加形容词，再加名词。Opportunity“机会”，是可数名词，故前用an。故选A。