I will never know what was on his mind at the time, nor will _______.

—Which of the three optional courses did you like best,Joe?—To tell you the truth, I didn’t like          of them.

—Is Tony a man with good manners?—I don't think so. As a matter of fact, he is ________ but polite.

—He was early drowned in a pool.—Oh, when was ______ exactly?— It was in 1983 _______ he was swimming with his friends.

Is this school ________ my father studied in when he was a child.