▲分析：

主语：His joke

系动词：was

表语：such

结果状语：as to make everybody laugh

句意=他讲的笑话很好笑，每个人都笑了。

原句=His joke was such that it made everybody laugh.

▲类似用法：

The pain in her foot wasn’t such as to stop her walking. 她脚疼，但还不至于不能行走。

His manner was such as to offend nearly everyone he met. 他的态度如此恶劣，差不多见谁得罪谁。