He ... (do) his homework yesterday they dog.
They ... (walk) their dog tomorrow.
Нужно поставить правильную форму глагола.​

He did his homework yesterday.

They will walk their dog tomorrow.

Объяснение:

Первое предложение стоит в времени,так как есть наречие "yesterday"-вчера.Второе предложение в будущем времени из-за наречия"tomorrow"-завтра.