1.The classroonms are big and bright.
否定句：The classroonms aren't big and bright.
一般疑问句：Are the classroonms big and bright?
肯定回答：Yes,they are .
否定回答：No,they aren't.
2.Our Chinese teacher is tall and strong.
否定句：Our Chinese teacher isn't tall and strong.
一般疑问句：Is our Chinese teacher tall and strong?
肯定回答：Yes,she is.
否定回答：No,she isn't.
I am eleven years old.
否定句：I am not eleven years old.
一般疑问句：Are you eleven years old?
肯定回答：Yes,I am.
否定回答：No,I am not.