小學英語單數的句子變成復數的句子

　　把單數的句子成復數的句子：

　　變法是把能變成復數的詞變成復數，但a或an要把去掉。特殊疑問

　　詞、形容詞、國家及地點通常不變。

　　Eg：把下列句子變成復數

　　1， I have a car ----we have cars

　　2， He is an American boy. ----They are American boys

　　3， It is a car ----They are cars

　　4， This is an eraser ----These are erasers

　　5， That is a backpsck -----Those are backpacks

　　6，I‘m an English teather ------We are English teathers

　　7，It’s a new shirt---- They are new shirts

　　8，He‘s a boy ----They are boys

　　9，She’s a singer ------They are singers

　　10，What‘s this in English？---- What are these in English？