用“defining relative clauses”造句大全，defining relative clauses造句
Innon-definingrelativeclauseswhomorwho(notthat)isusedandthepronouncannotbeomittedIndefiningrelativeclausesBwhombisalsounusual....
用“adjective clauses”造句大全，adjective clauses造句
Relativepronounsintroduceadjectiveclauses.Punctuation:Commasareusedinnon-definingadjectiveclauses.Punctuation:Nocommasareusedindefiningadjectiveclauses....