I have indefinite leave to remain. I am applying for naturalisation and i think will need to do life in the uk test. However the b1 test I'm not so sure. I'm 27 and completed my GCSE in English language B and English Literature C. It was in 2002. can I use these grades as my b1 English qualification? any response will be great.

No, your GCSE results are of no use here. Please read my replies to other people on the forum regarding similar queries. I have already covered the subject in depth.

regards