the classroom

Is the following sentence acceptable?

Is this the classroom in which they studied last year?

Quote:

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Originally Posted by Ashiuhto

Is the following sentence acceptable?

Is this the classroom in which they studied last year?

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Yes.

Next, is the following sentence acceptable?

Is the classroom in which they studied last year?

Quote:

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Originally Posted by Ashiuhto

Next, is the following sentence acceptable?

Is the classroom in which they studied last year?

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No.

Not a teacher.

I'd say "Is this the classrom where they studied last year?'

Quote:

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Originally Posted by Verona_82

Not a teacher.

I'd say "Is this the classrom where they studied last year?'

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That's fine too.

Also fine:

Is this the classroom which they studied in last year?
Is this the classroom that they studied in last year?
Is this the classroom they studied in last year?