根据以下材料，回答

Rowena and Billy Wrangler are model highschool students. They study hard. They do extreme well on achievement tests.And next year, Rowena will attending Harvard University. Billy, her youngerbrother, hope to go to Cornell. That makes Rowena and Billy different from moststudents are that they don′ t go to school. In fact, they′ ve never been toschool. Since a kindergarten, they have studied at home. Neither Rowena orBilly feels as if they have missed out on nothing by being taught at home. Asmany of the more than one million people who receive home schooling in theUnited States, they feel if they have gotten a good education.

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