阿摩線上測驗
21. The no-food-or-drinks rule is strictly _______ in the bookstore.
(A) enforceable
(B) enforcing
(C) enforced
(D) enforcement
答案：登入後查看
統計： A(10), B(13), C(217), D(7), E(0) #3223541
統計： A(10), B(13), C(217), D(7), E(0) #3223541
