题目类型：
单选题
题目内容
_______ you feel too ill to go out. I would rather not stay at home tonight.
正确答案
C
题目解析
这句话的意思是“除非你病的无法出门了，要不然我还是不情愿呆在家里”。Unless除非，although虽然，if如果，because因为。