It was not until then that I came to know that knowledge only from practice.? A. had come B. has come C. came D. comes? 题目和参考答案——青夏教育精英家教网—

题目内容

It was not until then that I came to know that knowledge _______ only from practice.?

A. had come B. has come

C. came D. comes?

解析:

主句虽然是过去时态，但从句所说明的是不受时间限制的真理或事实，名词性从句的谓语动词仍然用一般现在时。又如:He said Asia is the largest continent.

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