か聞いた

asked whether

→ か
phrase Common #3,456
asked whether か marks an indirect question; 聞いた means “asked” here. With question words such as 何, the phrase can mean “asked what.”
JA: 彼に明日来られるか聞いた。
EN: I asked him whether he could come tomorrow.

トムにプール掃除を手伝ってくれないか聞いた。

I asked Tom if he could help me clean the pool.

手伝ってほしいことがあるか聞いたんだよ。

I was asking if there was anything you needed help with.

トムはメアリーにいくら持ち合わせがあるか聞いた。

Tom asked Mary how much money she had with her.

彼女は私にどこへ行ったらよいか聞いた。

She asked me where she should go.

私たちはトムにどこに住みたいか聞いた方がいいと思う。

I think we should ask Tom where he wants to live.

彼女は誰が最初についたか聞いた。

She asked who got there first.

トムに何でそれやらなかったか聞いた?

Did you ask Tom why he didn't do that?

母に朝食の用意ができているか聞いた。

I asked my mother if breakfast was ready.