Find one mistake in each sentence. Rewrite the sentences correctly, without changing their original meanings.
They have five children, which study very hard.

К сожалению, у нас пока нет статистики ответов на данный вопрос, но мы работаем над этим.

Find one mistake in each sentence. Rewrite the sentences correctly, without changing their original meanings.They have five children, which study very hard.