1.In the past,most drivers were men._______,more and more drivers are women now.

题目

1.In the past,most drivers were men._______,more and more drivers are women now.
A.However B.But C.And D.Perhaps
为什么不是B

答案

因为however是转折连词,but是并列连词.既然but是并列连词,那么它必须连接两个是并列关系的句子,这里空格后面只有一个句子（因为空格前面是句号）,所以不能用but
确实两者意思都是“但是,然而”.但两者逻辑功能不同,这不是后面加不加逗号可以区别的
英语里面句法是很重要的,多多学习吧