7. The most frequently used service on the Internet is electronic mail ( e-mail ), which is fast and convenient.
(A) easily
(B) recently
(C) commonly
(D) possibly

答案：登入後查看
統計： A(12), B(11), C(63), D(0), E(0) #573602

詳解 (共 1 筆)

#3521812
7. The most frequent...
(共 260 字，隱藏中）
前往觀看
11
0