Meb Keflezighi has had a very 1.______________ athletics career since moving to the United States with his family at age 12. His two biggest highlights are a silver medal in the marathon at the 2004 Athens Olympics and the 2009 New York City Marathon title. In January, he 2.__________ first at the U.S. Olympic Marathon Trials to book his 3._________ to London. Keflezighi says he wants to win another Olympic medal in the British capital. To 4.__________ his chances of being on the podium in London, Keflezighi moved his family three years ago to Mammoth Lakes, California, where he trains at high 5.____________ in the eastern SierraNevada Mountains. The 37-year-old Keflezighi will be testing his 6.__________ against younger athletes in London, but there is 7. ____________ for Olympic marathon success. Portugal’s Carlos Lopes was the same age when he won the gold medal at the 1984 Los Angeles Olympics. And Romania’s Constantina Dita was 38 when she won the gold medal in the women’s marathon at the 2008 Beijing Games. Keflezighi has been running about 209 kilometers a week in his 8.__________ to the London Olympics, but he says that’s only part of his training.