Every day Jeff 　1　（put）on an man?made leg.The leg is plastic.With the plastic leg,Jeff can ski,ride 　2　（冠词）bicycle,swim and play soccer.He can also run.When he 　3　（be）22 years old,Jeff ran across the United States,from the East 　4　?（介词）the West.He ran 5150 kilometers，　5　 it was about 26 kilometers each day（改成非限制性定语从句）.Jeff wore out 36 pairs of 　6　（run）shoes and five plastic 　7　（leg）.On his way,people in every city gave Jeff money.The money that Jeff received was not for 　8　（反身代词）.It was for the American Cancer Society.The Society used the money 　9　learn（不定式）about cancer.At the same time,Jeff talked to people about cancer.He also talked about being disabled.Jeff is disabled，

?10　he can do many things （构成并列句）.