I don't think ----possible to master English without ----- practice.A.that;much B.which;enough C.it;much D.it;a number of

热心网友

选C。it作形式宾语。practice,“练习”,不可数名词,用much修饰; a number of 修饰可数名词。

热心网友

我觉得是C

热心网友

C