阿摩線上測驗
30. You should stand by main engine for the maneuvering as soon as possible when you are
_____.
(A) dragged
(B) dragging
(C) dredged
(D) dredging
答案：登入後查看
統計： A(19), B(96), C(6), D(37), E(0) #2570684
統計： A(19), B(96), C(6), D(37), E(0) #2570684
