_____he said so at the meeting made everyone present surprised.为什么填 that ,不填 what 说明理由.

问题描述:

_____he said so at the meeting made everyone present surprised.
为什么填 that ,不填 what 说明理由.

that 起引导从句作用,因后面有个so,故不能用whatwhat he said at the meeting made everyone present surprised.=that he said so at the meeting made everyone present surprised.