apples rulers desks三个哪个单词的 s 的读音与别的不同?

apples rulers desks三个哪个单词的 s 的读音与别的不同? cups shrimps desks apples 哪个发音不同 desks,cars,apples,pears哪个发音和其他不一样?为什么? 改成一般疑问句Those are his rulers.改成否定句These are apples. 把下列单词分类.单词是： desks,chais,pens,ducks,rulers,pictures,vests,quilts,hands,ropes,matches,bosses,ladybirds,maps,faces,roads,units,playgrounds,roots,oranges.要把它们分成五类,分别是跟hats一类,跟beds一 将下列句子进行单复数互换 These are pens Is this an orange What's that in EnglishThose are apples Are these desks rulers音标怎么写 What are these?They are apples的单三形式 These are desks 对desks提问. we want to buy three rulers[three rulers}提问 How many rulers do you what are the school rulers How many the rulers count? at hotel travel desks apples to apples basis 改变句型. 4.This is a book.(改为复数形式） 5.Those are his rulers.(改为一般疑问句）6.These are apples.（改为否定句）7.That's Lin Jiang.(用who提问）8.They are at school.(用where提问） 三筐苹果是3 baskets of apple还是3 baskets of apples? There are desks in English.对desks做提问