He had to sell the house,__ he had to make some money for the medicine.为什么填which 或that或 as
问题描述：
He had to sell the house,__ he had to make some money for the medicine.为什么填which 或that或 as
答
此题应填as,表原因,他必须卖房子,因为他必须弄些钱来买药.that、which引导定语从句修饰house,在本题里不适用.而且,that引导的定语从句that前不能有逗号.