________ home.

Who is Mr. Smith — He is _______ English teacher.

When the mother realized what had happened to her child, she ________ her face in her hands. So no one could see her expression.

Although he failed this time，he didn’t give up and ________ studying hard.

The question was brought to life again ________a person has the right to end his or her own life and a doctor has the right to assist.