課題を

assignment(s)

→ 課題
phrase Rare #20,693
assignment(s) 課題 can mean an assignment, homework, or a task. を marks it as the direct object of a verb.
JA: 課題を今日中に終わらせます。
EN: I'll finish the assignment today.

美術の課題を放課後に手伝ってあげた

I helped them with their art assignment after school.

— ダーク・プレイス (2015)

課題をする気分じゃないな

I don't feel like doing my homework.

— Hoje Eu Quero Voltar Sozinho (2014)

私はついに課題を終わらせた。

I finally finished my assignment.

彼はその難しい課題をがんばってやった。

He worked hard on that difficult assignment.

うちで課題をする

I do my homework at home.

— Hoje Eu Quero Voltar Sozinho (2014)

ラリッサと課題をやるんじゃ?

Aren’t you going to do the assignment with Larissa?

— Hoje Eu Quero Voltar Sozinho (2014)

昨日課題をやった?

Did you do your homework yesterday?

— Hoje Eu Quero Voltar Sozinho (2014)

一緒に課題をやるんだ

We're going to work on the assignment together.

— Hoje Eu Quero Voltar Sozinho (2014)