In the United States, Howard Hughes is as well 1)__________ as Washington and Abraham Lincoln. The reason why he is 2)__________ as an idol "American hero", is not only because Howard Hughes is one of the few rich people in the United States who enjoys world 3)__________ , but more 4)__________ , he is a famous filmmaker, aviator, and aircraft manufacturer. He made many 5)__________ in the history of the United States.