阿摩線上測驗
23. Some parents choose the online schools because their children are struggling in ordinary ones； _________ for their flexible schedules.
(A) others do so
(B) so are others
(C) do so others
(D) others so do
答案：登入後查看
統計： A(0), B(0), C(0), D(1), E(0) #3354325
統計： A(0), B(0), C(0), D(1), E(0) #3354325
