That is a ruler 回答
That is a ruler 回答
That is a ruler .改为否定回答
that is a ruler一般疑问句、肯定回答
Is that his ruler(作肯定回答)
is that your ruler 做肯定回答
Is that your ruler?做否定回答.
Is that her ruler?(改成否定回答)
A:Is that a ruler?B:Yes ( ) ( ).
Is this a ruler.(做否定回答)
that is (a red ruler) 对括号部分提问 回答只有两个空 ( )( )
That is a ruler 变为否定句
That is a ruler作复数句