Mame wrote:You would simply write it another way, JTT.
The only time you use "Which" to start a sentence is when it's a question. At least, that is what I was taught.
"Which way are you going?"
The sentence in my previous post is not a complete sentence, so it's doubly wrong.
Mame, you wrote, "NO!!! Weird, to me". We don't speak in complete sentences and there's nothing "wrong" with that at all. But, regardless, the fact that you can't find an antecedent for 'which' should tell you something.
This,
"Which way are you going?"
also isn't a complete sentence. It needs, "Billy", as in,
"Which way are you going, Billy?"