Why aren't articles used in which or what questions? (For example: "What flavor would you like?") Can I say "what a flavor would you like?"?
1 Answer
Articles are not needed when there is some other determiner:
A dog / my dog / that dog
The words my and that are determiners and you don't say "my a dog" or "the my dog"
Articles ('a' and 'the') are also determiners.
The question word "what" can also function as a determiner, although it asks for the responder to determine. So again we don't say "what a dog is it?" or "The what dog is it?"