nobody told us后面为什么跟how to do it 或者what to do而不能跟how to do 或者what to do it
问题描述：
nobody told us后面为什么跟how to do it 或者what to do而不能跟how to do 或者what to do it
答
what to do中,what相当于do的宾语,就是to do what（something)的意思.
how to do中没有宾语,do后面要加一个宾语it