阿摩線上測驗
It is kind ________ you to help me with my homework.
(A)in
(B)to
(C)of
(D)for
答案：登入後查看
統計： A(2), B(5), C(80), D(19), E(0) #403273
統計： A(2), B(5), C(80), D(19), E(0) #403273
