She can speak English and French.划线部分是 English and French.如何提问?

问题描述:

She can speak English and French.划线部分是 English and French.如何提问?
是 what language does she speak 还是what languages does she speak  language到底加不加s 我们千叶老师说了 不加s  都知道他会说2种语言了 问了 不就等于白问吗               但是我们学习的白痴老师又说 因为知道了2种语言 所以加s 到底加不加后天英语期中考试啦 拜托专业英语学者或老师 要有说服力

how many kinds of languages do you speak? 这种情况下要加s,
像你问的这个问题,它不加S,因为提问者不知道回答者会讲几种语言.