阿摩線上測驗
34. I don’t know _____ he will come to the party or not.
(A) that
(B) when
(C) how
(D) whether
答案：登入後查看
統計： A(121), B(56), C(27), D(506), E(0) #3930932
統計： A(121), B(56), C(27), D(506), E(0) #3930932
