It was not until then that I came to know that knowledge only from practice.?A．had comeB．has comeC．cameD．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

解析试题分析：考查时态。本句中的knowledge comes only from practice是一个客观真理；在任何情况下都使用一般现在时。故D正确。
考点：考查时态
点评：在英语中表示客观真理的句子在任何情况下都要使用一般现在时，这是一条永远都不变的规则。

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