阿摩線上測驗
15. In 1939 the Ohio and Mississippi rivers overflowed _____ the worst flood ever
known in the United States.
(A) the cause of
(B) which caused
(C) and caused
(D) they caused
答案：登入後查看
統計： A(6), B(84), C(166), D(4), E(0) #1821505
統計： A(6), B(84), C(166), D(4), E(0) #1821505
