If someone has to an action or policy, they are responsible for it, and may be required to explain it to other people or be punished if it fails.
—— Did he notice you enter the room? —— I don’ t think so.He_____to the radio with his eyes shut.
—— Tom, did Mr.Li join you in your dicussion? —— No, he____, but he happened to have fallen ill.
—— What do you think of this kind of TV set,which ______ in Shanghai? —— Well, I don’ t care such things.
I didn’t like Aunt Lucy, who______without warning and bringing us presents.
—— I____to a party, but I’ ve got nothing to wear. —— Why don’t you have a dress made for the party?