阿摩線上測驗
16. The two years the author has spent writing this book have been a continuous ______ to him.
(A) invitation
(B) opinion
(C)question
(D) revelation
答案：登入後查看
統計： A(0), B(1), C(2), D(27), E(0) #3473938
統計： A(0), B(1), C(2), D(27), E(0) #3473938
