Question

what does your teacher look like?

为什么不能把what换成how？？？？？？

Answer 1

因为look like中,look是联系动词,look是介词,因此必须用疑问代词做介词like 的宾语;若用疑问副词how,则介词like就没有宾语了

Answer 2

how is your teacher 就对了

Answer 3

what does your teacher look like?
此句不对。应是 how does your teacher look like?
答案满意吧。