It was not until then that I came to know knowledge ____only from_英语解答

It was not until then that I came to know knowledge ____only from practice. (2 分)
A. had come
B. came
C. would come
D. comes

人气：311 ℃　时间：2019-11-08 15:58:28

解答

D
从句" knowledge comes only from practice"是客观真理,所以不管主句是何时态,从句都用一般现在时.