阿摩線上測驗
64.At the end of the train there is an open ________ car where you can stand and smell the jungle, listen to the birds, and breathe in the sweet Asian air.
(A) primary
(B) installation
(C) observation
(D) moderation
答案：登入後查看
統計： A(20), B(15), C(61), D(11), E(0) #664979
統計： A(20), B(15), C(61), D(11), E(0) #664979
