緊急求助，H1轉F1的問題

本人不才，來美進三年H1b（博後）黑天白日幹活又被不良老板炒魷魚，轉語言學校F1維持身份希望能盡快找到新的職位，轉換申請過程卻被USCIS刁難，要求出示如下證據：
documentary evidence which will show you have managed to live in the USA since entering USA without speaking English.
documentary evidence that English Language programs are not available in the PR China.
這純粹是刁難啊，我怎麽找到documentay的證據呢？
請教過來人。多謝！！