阿摩線上測驗
2. People don’t know the value of freedom _______ they have lost it.
(A) until
(B) still
(C) while
(D) since
答案：登入後查看
統計： A(510), B(31), C(21), D(8), E(0) #2199406
統計： A(510), B(31), C(21), D(8), E(0) #2199406
