Ren had forgotten to do his homework.

Please pay the monthly tuition fee by next week.

He was promoted to the chief operating officer of the company.

He was appointed as the chief financial officer of our company.

He always keeps the proverb 'Do not make friends with those who are not like you' in mind.

He is the chief technical officer of our company.

He is active as the chief information officer of our company.

After he left, she remembered the proverb 'feelings for a departed one grow weaker over time'.

He is a vegan and does not eat any food derived from animals.

Workers of the world, unite, the time has come to show our strength.