The two things are the same in outward form but different _____.
——What do you think of Mr. Stone?—— ,he is a good man, but sometimes his bad temper is not easy to .
——I’m sorry, Mrs. Smith, I have dirtied your papers.—— .
It was ______ back home after the experiment.
I have been waiting for a bus for such a long time. Wish I _______ a book with me!
— When did Lily’s brother finally stop drinking alcohol?— It was in May _____he was put into prison for drunk driving.