It is a ruler. (改为一般疑问句,并作肯定回答) 求教!

It is a ruler. (改为一般疑问句,并作肯定回答) 求教! that is his ruler.(改为一般疑问句并作肯定回答） It is a pen.改为否定句,并作肯定回答.改为一般疑问句,并作否定回答 英语作业,帮帮忙1.This is a ruler.(改为一般疑问句.并作否定回答）____ ____ a ruler? Betty is American.(改为一般疑问句,并作肯定回答) It is an orange .改为一般疑问句并作肯定和否定回答. this is his book that is your ruler 改成一般疑问句并作肯定否定回答 改为一般疑问句并作肯定回答 把That is a desk改为一般疑问句并作肯定回答,否定回答 Miss Liu is a teacher.改为否定句,并作肯定回答.改为一般疑问句,并作否定回答 It was there a moment ago.(改为一般疑问句并作肯定和否定回答) This is a teacher's desk(改为一般疑问句,并作否定回答.）求教