could you tell me what to do with.

问题描述:

could you tell me what to do with.
解释一下什么时候用what什么时候用how

问题在于:what to do 后面没有宾语,how to do it,后面有宾语.关键是那个with ....是当宾语还是说什么。。。。with后面还有宾语的话,就要用how,后面没有宾语的话,就要用what举例what to do中,what作do的宾语,do what是动宾结构。how to do sth,是问do某事的方式,do已经有宾语了,不能再加宾语what,问的是"怎样做"而已。