YOU SAID:

I was surprised to hear the news of his sudden death.

INTO JAPANESE

私は彼の突然の死の知らせを聞いて驚いた。

BACK INTO ENGLISH

I was surprised at the news of his sudden death.

INTO JAPANESE

私は彼の突然の死の知らせを聞いて驚いた。

BACK INTO ENGLISH

I was surprised at the news of his sudden death.