問題詳情
9. Many factors may explain why people are addicted to the Internet. One factor ______ to this phenomenon is the easyaccess to the Net.
(A) contributes
(B) contributed
(C) contributing
(D) to contributing
參考答案
答案：C
難度：非常簡單1
統計：A(0),B(0),C(1),D(0),E(0)