that he said so must be quite encouraging,i think这里为什么不用what来引导,而_英语解答

that he said so must be quite encouraging,i think
这里为什么不用what来引导,而用that
是把so 当作said 的宾语吗
好象没有这个用法吧

人气：176 ℃　时间：2020-04-11 18:05:02

解答

he said so是个完整的句子,所以应该that引导
如果没so就应该what
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