I have made inquiries.

我打听过了。

youdao

Not long after I arrived in Beijing in 1949, I made inquiries about the celebrated artist Qi Baishi. On learning that he was still alive and well, I was very eager to meet him.

1949年我进北京城不久，就打听白石老人的情况，知道他还健在，我就想看望这位老画家。

youdao

I made inquiries at the desk.

我在柜台询问。

youdao

Martin appealed to the regiment's sergeant major, who made inquiries on his behalf.

WSJ: When the Fighting Stops: Troops Coming Home from Afghanistan

Citi revealed the hacker attack, which it detected a month ago, to the Financial Times after the paper made inquiries.

FORBES: Citibank Reveals One Percent Of Credit Card Accounts Exposed In Hacker Intrusion

The FBI made inquiries and interviewed Tamerlan, but it closed the matter several months later after it could find nothing suspicious about him.

WSJ: Lawmakers Cite Failures in Boston Attacks