étonner

Ça ne pouvait pas m'étonner beaucoup.

That did not really surprise me much.

Sa mémoire ne cesse jamais de m'étonner.

His memory never ceases to astonish me.

Se surprendre, s'étonner, c'est commencer à comprendre.

To be surprised, to wonder, is to begin to understand.

Ce qui m’étonne, c’est qu’il n’en dise rien.

What surprises me is that he isn't saying anything about it.