This is a ruler 改为一般疑问句

This is a ruler 改为一般疑问句 This is a ruler改为一般疑问句 This is my ruler.(改为一般疑问句) That is a ruler.改为一般疑问句 This ruler is for you .改为一般疑问句,怎么改? 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? It is a ruler(改为一般疑问句)怎么写? This is a ruler怎么改一般疑问句 一般疑问句和肯否定回答:This is a ruler That‘s a ruler.(改为一般疑问句) Is this your book?(作回答) It is my ID It is her ruler改为一般疑问句, this ruler is hers.改一般疑问句