—Mary,new copies of 《Harry Potter》 are on sale now.—Great! Let’s go and buy this afternoon.
.Early to bed and early to rise ______ a man healthy, happy and wise.
.Mathematics ______ the language of science.
.The young ______ the vital forces in our society.
.Every man, woman and child ______ some history, enough at least, to survive in the world.
.None of them ______ my friends.