に取り組んで

working on

→ に

phrase Uncommon #19,395

working on Used with a task or problem that someone is working on or tackling.

JA: 私は新しいプロジェクトに取り組んでいます。

EN: I’m working on a new project.

どうぞ事件の解決と暴動の解決に取り組んでください

Please work on resolving the case and putting down the riot.

— Article 15 (2019)

それに取り組んでいます

I'm working on it.

— オデッセイ (2015)

その科学者は新しい実験に取り組んでいた。

The scientist was working on a new experiment.

何に取り組んでいるのですか。

What are you working on?