12. When it comes to training for marathon, no one _____.
(A) understands it better than Chris
(B) is understanding more than Chris
(C) but Chris understand well
(D) but understand well can Chris
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統計: A(88), B(29), C(47), D(3), E(0) #3102650
統計: A(88), B(29), C(47), D(3), E(0) #3102650