boxes；classes；shoes；watches中的es发音不同的是?

boxes；classes；shoes；watches中的es发音不同的是? classes There is / are a pair of shoes and two boxes under the bed 为什么There is / are a pair of shoes and two boxes under the bed 为什么后面不是还有个and吗，and在这为什么不管用 1.man and child's shoes ,men's and children's shoes 2.2.letters boxes ,letter boxes 哪个对3.Bialogy is ___A.the science of the life,B.science of the life shoes shoes s的发音,wears books houses potatoes matches does classes shops monkeys ages boys months boxes bags organizes例：books.s发/s/ 求一个英语小短剧之类的东西根据father,shoes,boxes,hands写一篇类似英语小作文的文章,不用太长,但所有词都要用上 gaylord boxes Boxes是什么意思? pencil-boxes would you like some drinks,boys!Yes,_____ ,please a.some oranges boxes of chocolate b.somecakes d.two boxes of cola there is no _____ between the twins .but they are in _______(diffreent) classes.his frends t____ to help him.then rich man's head goes 阅读理解填词.Lily and Lucy are sisters.this is t...room.You can see two b...in the room.This green bed is Lily's,and that blue one is Lucy's.A red schoolbag is on Lily's bed,and two boxes are u...it.What's in the boxes?they are her shoes.On Luc Choose Tick the boxes match boxes是什么意思? boxes是什么意思谢谢 tow boxes of kinves pencil boxes是什么意思