We use "which" as a determiner to ask a question about a specific group of people or things:

Which restaurant did you go to?
Which countries in South America have you visited?

When we are asking a general question we use "what" as a determiner:

What films do you like?
What university did you go to?

Section: 

Comments

Hi,

I understand that what is general and which is a limited group or more specific.

My question is why as a native speaker is "What's your blood type" more natural sounding that "Which is your blood type?"

I know that I can say "Which blood type do you have?" I'm just having trouble explaining why "which is your blood type?" sounds wrong.

Thanks

Hi teacherwithqs,

We generally use 'which' when there is a limited set of options and they are presented before us. Thus, if you were simply asking a person about their blood type then you would say 'What...?' However, if you had, say, a chart in front of you with the various blood types on it then you would tend to say 'Which...?'

One way to think of this is that 'Which...?' really means 'Which of these...?'

 

Best wishes,

Peter

The LearnEnglish Team

Hi Team.
Help me with this, please..
Which ones of these interrogative sentences is correct?
1. Why isn't there "to" after verb "want" in the sentence?
2. Why after verb "want" there's no "to" in the sentence?
Would you like to explain, please?
Thank you.

Hello Nizam,

1 is almost correct -- instead I'd say 'Why isn't there a 'to' after the verb 'want' in the sentence?'. 2 is almost correct, also -- instead I'd recommend 'Why is there no 'to' after the verb 'want' in the sentence?'.

All the best,
Kirk
The LearnEnglish Team

Hi,
If we are asking for the definition of a term, what should we use----what or who? For example, which of the following sentences is right?
What is a zookeeper?
Who is a zookeeper?

Thanks

Hi naghmairam,

To ask for a definition you should use 'what'. If you ask 'who' then you will be told the name of the person who has this job.

 

Best wishes,

Peter

The LearnEnglish Team

Dear Sir,

Which one is correct.
1. Sara can play _a_ guitar.

Or

Sara can play _the_ guitar.

Hello Gobin Sonowal,

Both 'a' and 'the' are possible here - which one is correct depends on the context. Please see our English Grammar section on Articles and our Quick Grammar page on Articles for explanations of the differences between them.

All the best,
Kirk
The LearnEnglish Team

hello sir
the statement : what films do you like?
it can't be understood that its also a question about (type) of films you prefer ?
thank you

Hello dentist iraq,

You are correct: this can be a question about specific films of kinds of film, depending on the context. A more likely question would be 'What kind(s) of films do you like?' if the context did not make it clear that we were talking about types.

 

Best wishes,

Peter

The LearnEnglish Team

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