Where__(be)a ruler,a rubber and some pencils in it.求填什么be动词?

Where__(be)a ruler,a rubber and some pencils in it.求填什么be动词? Where__(be) you a moment ago?填空 ( ) you( ) a ruler? A red ruler Is it a ruler? What _______ (be) on the desk just now?There ______ (be) a pen and a ruler. It is ( )ruler. A.a long red ruler B.a red long ruler C.long ruler D.red ruler This is a ruler(对a ruler提问) ----- -----this? This is a red ruler 用a red ruler 提问 they have a ruler改成对a ruler提问 That is a ruler 回答 I have a new ruler Who (have) a red ruler 反义疑问句 He must be a worker,I wish to use your ruler, do you know where__(buy) a washing machine?先翻译最后两个词,再详细说明理由 A:Is that a ruler?B:Yes ( ) ( ). A.ruler.a.rubber中文意思是什么 ______?That's my ruler.A.Whose ruler is it?B.What ruler is it?