The interrogative determiners are which and what.
which is a specific determiner
Here are three books. Which book do you think is the most interesting?
They have four boys. Which boy is the oldest?
I can’t remember which house Janet lives in.
Which restaurant did you go to?
what is a general determiner
What food do you like?
I don’t know what job she does.
Choose the best word.
A: Have we got any ice cream in the freezer? B: Yes, vanilla or strawberry. ___ would you prefer?
Choose the best word.
A: Hello, sir. Passport, please. ___ the purpose of your visit? B: Oh, I’m just visiting some friends.
A: I grew up in a little town called Letchworth. B: Really? I know Letchworth. ___ school did you go to?
