—Excuse me, could you tell me where I could make a call? —Sorry, I’m a stranger here. —_______.
Tom said that he was late because he ________ in the elevator.
His parents told him ________ too much about what others said.
________ his appearance, he is most probably a new teacher.
After teaching in Bejing for five years, he returned to the small town ________ he grew up as a child.
He devoted all his life to ________ those who are suffering from cancer.