Our blackboard is（）,but the wall

Our blackboard is（）,but the wall The wall of our classroom is white, but the blackboard is b- 根据首字母提示完成句子:Our blackboard is b_____,and the wall of our cla there is a blackboard （） the front wall.(A.on B.in C.at)如题 There is (a blackboard) on the wall.(对括号部分提问） On the wall there is a blackboard and some p___ there is a blackboard on the wall翻译 1.blackboard,it,is,a,the,wall,on(.) 2.it,is,blackboard,a,on, The blackboard is on the front wall.=() () a blackboard on t there is a blackboard on the wall.()()()()there on the wall? The blackboard is ( )our classroom填什么介词 our teacher is writing on the blackboard.改为一般疑问句