我们都感到惊讶的是，他在如此短的时间内完成了写作。这句话中的主语从句是”That he finished writing the composition in such a short time surprised us all”。
根据要求进行改写如下：It surprised us all that he finished writing the composition in such a short time.
主语从句的引导词是什么
我们都感到惊讶的是，他在如此短的时间内完成了写作。这句话中的主语从句是”That he finished writing the composition in such a short time surprised us all”。
根据要求进行改写如下：It surprised us all that he finished writing the composition in such a short time.
