一般疑问句什么时候用has,什么时候用have

问题描述:

一般疑问句什么时候用has,什么时候用have
如:She's already visited lots of cities in China(改为一般疑问句)
_____ she visited lots of cities in China______

Has , yet
注:主语是第三人称单数时用has ,其余人称用have