阿摩線上測驗
30 Kevin, a doctor in a _____ agency, travels to Africa at his own expense to help people there.
(A) volcanic
(B) victorious
(C) voluntary
(D) vulnerable
答案：登入後查看
統計： A(91), B(158), C(604), D(123), E(0) #3116962
統計： A(91), B(158), C(604), D(123), E(0) #3116962
