書名： 新多益閱讀大破解Part５&６
題目：
Internet access in some Asia countries is still ______ through teleph
one modems, but high- speed access is beginnging to make in-roads.
(A) predominant
(B) predominantly
(C) predominating
(D) predominated
疑問：為甚麼是B(副詞)而不是A(形容詞) 麻煩高手大大們幫忙解惑~