boxes是和pencil cases同音的吗?

boxes是和pencil cases同音的吗? boxes是和pencil cases同音的吗? boxes是和pencil cases发同样的音的吗? pencil-boxes pencil boxes是什么意思 cases in china是同啥意思 合成名词girl student复数形式是girl stedents,那为什么pencil box的复数形式是pencil boxes? How many pencil boxes are mentioned? What color are their pencil cases? Are these her pencil boxes?(改为同义句) Are_______pencli boxes_________? 连词成句black,those,boxes,are,pencil _____________________________? The pencil boxes are hers?对 hers提问 THese are orange pencil cases (改为单数句） these are orange pencil cases 改为单数句 Those are Rose's pencil-cases.(用whose提问） cases是啥意识? Are these his pencil cases?改为单数形式 （ ）（ ） his pencil case? 英语同义句：Some pencil cases are on the floor.( ) ( ) some pencil case on the floor.