1. 【解析】选A。考查条件状语从句的省略。答句句意：如果是这样的话，我们再重新安排一下招待客人的餐桌吧。根据句意选A。
2. 【解析】选B。考查非谓语动词省略句的用法。句子可还原为：If it is not carefully dealt with, the situation will get worse.
3. 【解析】选C。考查省略。Anything to follow是Is there anything to follow的省略。Anything to follow相当于Anything else。
