Today is Wednesday. He _______ be at home. He _____ be at school.

Even a drop of water ______because it is so important to all the living things.

It ________ have been her to leave her child alone and do whatever she wanted. She isn't such a person.

— You used to 　　　　 the bus to school, didn’t you?— Yes, I did. However, I am used to 　　　　 to school now.

--We need a man full of wisdom to take charge of the project.--________ the young man graduating from Harvard have a try?