复数形式 book boy photo dictionary friend class Chinese tomato 改为复数形式

book--books，boy--boys，photo--photos，dictionary--dictionaries，friend--friends，class--classes， Chinese -- Chinese ，tomato --tomatoes。

book ---------------------------books
boy -----------------------------boys
photo --------------------------photos
dictionary ---------------------dictionaries
friend --------------------------friends
class ---------------------------classes
Chinese ------------------------Chinese
tomato ---------------------------tomatoes

boys,erasers,babies,buses,children,parents,dictionaries,books,friends,photos,tomatoes,men,these 请记得采纳,

book：books
boy：boys
photo ： photos
dictionary ：dictionaryies
friend ： friends
class ： classes
Chinese ： Chinese
tomato ： tomatoes