ruler, my ,teachet's ,is, where(构成疑问句）

ruler, my ,teachet's ,is, where(构成疑问句） ______?That's my ruler.A.Whose ruler is it?B.What ruler is it? I'm using my brother's ruler(my brother's ruler)对画线部分提问 This's my ruler and that's his ruler 有没有错 This is my ruler,That's you ruler 这句话有错么?错在哪里? 同义句My ruler is shorter than jim's. This's my ruler and that's his ruler哪里错了A This's B my C that's D his And I need my ruler.It's on the bed.And my notebook. This's my clock .that's his ruler 哪里错了? is My ruler?—It‘s in the pencil box选一选,is My ruler?—It‘s in the pencil box选一选,A ,When B,Where C ,Why ***Whose ruler is longer,yours or Gao Shan's?Whose ruler is longer,yours or Gao Shan's?A.Gao Shan's B.Mine is,I think.C.It's my ruler 选那一个,其它为什么不行, Is that the teachet's office?改肯定句不要用 That is the teacher's office It's my pencil case 改为否定句This is her ruler 改为一般疑问句 找出句子中的错误 It's my ruler. Could you give them back to me? This is my ruler中的my ruler怎么提问? This is my ruler.(划线部分提问)my ruler画线 The book is o_____ medicine It's ____{Lucy} class This is my ruler .his ruler is not an old.改错 It’s ruler in English.