11 I don’t know.What does your mom look like?(合成一句) I don’t know ___ ___ ___ ___ ___.

11 I don’t know.What does your mom look like?(合成一句) I don’t know ___ ___ ___ ___ ___.
11 I don’t know.What does your mom look like?(合成一句) I don’t know ___ ___ ___ ___ ___.

11 I don’t know.What does your mom look like?(合成一句) I don’t know ___ ___ ___ ___ ___.
I don’t know _what__ _your__ __mom_ _looks__ _like__.

what your mom looks like
成为了一个宾语从句，what作为引导词

I don't know what your mom looks like.