7.
(A) built
(B) were built
(C) have been built
(D) were building

答案：登入後查看
統計： A(6), B(39), C(12), D(6), E(0) #808149

詳解 (共 1 筆)

#4640203
此提要選被動語態的過去式 were + ...
(共 26 字，隱藏中）
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