阿摩線上測驗
14. When we visit some historic _______ sites, such as the Great Wall in China and the Great Pyramid in Egypt, we can see traces of ancient cultures.
(A) traps
(B) traces
(C) trios
(D) trends
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統計： A(1), B(1), C(0), D(0), E(0) #3361936
統計： A(1), B(1), C(0), D(0), E(0) #3361936
