The blackboard is ( )our classroom填什么介词

The blackboard is b_______t what color is the blackboard? What shape is the blackboard? There is a blackboard( )( )( )the classroom There is a blackboard( )( )( )the classroom Our blackboard is（）,but the wall mike is the cleaning now blackboard he is looking at the blackboard ------(happy) There is a M___ on the blackboard There is a blackboard ( ) ( ) ( )the class 同义句转换 The blackboard is 3 metres long.The blackboard is 3 metres_____ _____． The blackboard is on the front wall.=() () a blackboard on the front wall.空里填什么 Look!The girl is __________(确实) writing on the blackboard. Simon is busy c____ the letters down from the blackboard what’s that in the blackboard what’is ,in,blackboard.那个错了? there is a blackboard on the wall翻译 The blackboard is ( )our classroom填什么介词 Tom is looking at the blackboard(改为祈使句)