【正文】
those it they is are three pencils a pencil a box five boxes four oranges an orange a bus six buses a cake two cakes a book seven books 名詞變復(fù)數(shù)口訣 名詞變復(fù)數(shù)有變化,詞尾常把 s加; 結(jié)尾若是 s , x, ch, sh,加上 es要記下; 若遇 f , fe ,更要弄清其變化; 先將它們變成 v,然后再把 es加;