plastic:塑料
blisters:水泡
canal:運河
auction:拍賣
Before roads were built,_______ were used for transportation in this area.
在這個區域,路被建造以前,運河曾用來運輸(A) plastics 塑膠(B) blisters 水泡(C) canals 運河
(D) auctions 拍賣
*canoe 獨木舟
35. Before roads were built,_______ were..-阿摩線上測驗