______ long have you studied Chinese.—For about two years.用why,who,what ,when填空
问题描述：
______ long have you studied Chinese.—For about two years.用why,who,what ,when填空
答
How
应该用 how
how long 多久对一段时间提问
希望对你有所帮助,有不会的可以再问,祝学习进步!
您的及时采纳是对答题者的尊重!O(∩_∩)O~就只给了这四个词啊那就是题有毛病没错的 用how