I don't think ----possible to master English without ----- practice.A.that;much B.which;enough C.it;much D.it;a number of
選C。it作形式賓語。practice,“練習”，不可數名詞，用much修飾； a number of 修飾可數名詞。
我覺得是C
C
<ul id="mtiim"></ul>
