阿摩線上測驗
15. In a suspension bridge ____ that carry one or more flexible cables firmly attached at each end.
(A) there were two towers on it
(B) two towers there are
(C) there are two towers
(D) towers there are two
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統計： A(7), B(3), C(41), D(2), E(0) #3237234
統計： A(7), B(3), C(41), D(2), E(0) #3237234
