阿摩線上測驗
17. In some states of the US, teenagers are allowed _____ how to drive when they turn 16.
(A) learning
(B) to learn
(C) to have learned
(D) to be learned
答案：登入後查看
統計： A(43), B(247), C(7), D(12), E(0) #3235473
統計： A(43), B(247), C(7), D(12), E(0) #3235473
