阿摩線上測驗
12. When you're really busy, hanging a sign “Do Not ___________” at your
door is handy for reducing the number of interruptions you get.
(A)Come
(B) Disturb
(C) Enter
(D) Talk
答案：登入後查看
統計： A(0), B(80), C(21), D(0), E(0) #2059681
統計： A(0), B(80), C(21), D(0), E(0) #2059681
