he-they friend-friends watch-watches boy-boys key-keys is-are brother-brothers box-boxes family-families pen-pens book-books this-these
一般情况下都加s,以x sh ch 结尾的加es,以o结尾的除了potato,tamato,hero,negro加es（限初中所学单词中）,其他加s.
初一英语第3单元复数形式这些的负数形式：he friend watch boy key is brother box f
4个回答
相关问题
-
写出下列单词的复数形式：this,is,brother,parent,sisier,friend,book,key
-
those的单数形式;he的复数形式;brother的复数形式，parent复数形式
-
Thsae are his brothers（变单数形式） That's his friend（变复数形式） Is th
-
英语单词“key”的复数形式,
-
Is it your box?变复数形式
-
That is his brother的复数形式
-
he is my friend复数形式为什么是they are our friends.
-
1.This is his brother改复数形式 2.That is my sister.改复数形式 3.Those
-
It is a big box 的复数形式
-
this is a pencil box 的复数形式