1.The classrooms are big. 否定句:The classrooms aren't big. 一般疑问句:Are the classroom big? 肯定回答:Yes, they are. 否定回答:No, they aren't. 2.Our Chinese teacher is tall. 否定句:Our Chinese teacher isn't tall. 一般疑问句:Is your Chinese teacher tall? 肯定回答:Yes, he/ she is . 否定回答:No, he / she is. 3.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.