- Relativepronounsintroduceadjectiveclauses.Punctuation:Commasareusedinnon-definingadjectiveclauses.Punctuation:Nocommasareusedindefiningadjectiveclauses....
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- Innon-definingrelativeclauseswhomorwho(notthat)isusedandthepronouncannotbeomittedIndefiningrelativeclausesBwhombisalsounusual....
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