19. Kevin Lin started to run across the Sahara Desert in November, 2006. He _____ for 111
days, and finally finished his run on February 21, 2007.
(A) has run
(B) ran
(C) was running
(D) would run
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統計: A(18), B(23), C(8), D(0), E(0) #3263614
統計: A(18), B(23), C(8), D(0), E(0) #3263614