Question

_____you have a talk with him ，you will know he is a good person .
A. Once         B. unless        C.   Though

Answer 1

A

试题分析：Once一旦，曾经；unless除非，如果不；Though虽然，尽管。句意：一旦你和他谈过话，你就会知道他是一个不错的人。故选A。