阿摩線上測驗
27. Climbing the mountain _____ is too dangerous for most people. It is
better to climb with some friends.
(A) together
(B) quietly
(C) alone
(D) constantly
答案：登入後查看
統計： A(1), B(7), C(209), D(4), E(0) #3060178
統計： A(1), B(7), C(209), D(4), E(0) #3060178
