把下面的句子改成一般疑问句,并作肯定或否定回答.还有两个对划线部分提问的.
问题描述：
把下面的句子改成一般疑问句,并作肯定或否定回答.还有两个对划线部分提问的.
1.that is my ciock(否定）
2.this is your mother's bag(肯定）
3.I am a teacher(否定）
4.MY classmates are fourteen years old(肯定）
5.this is a watch( 对 a watch提问）
6.that is an eraser (对 an eraser提问）
答
1.Is that your clock?--No,it isn't
2.Is this your mother's bag?--Yes,it is.
3.Are you a teacher?--No,I am not
4.Are your classmates fourteen years old?--Yer,they are.
5.What's this?
6.What's that?