the classroom is a real mess.中为什么要用is a real mess?这是什么句型或语法?

There is a blackboard( )( )( )the classroom There is a blackboard( )( )( )the classroom 划线提问：There is a computer in the classroom.划线部分：a格式：------- -------- -------- ------- -------in the classroom? Our classroom is ____ ____ their classroom.There is a wall _____ the two classrooms Is there anyone in the classroom?No,____ A.Jim is in the classroom B.everyone is in the classroomC.no one is in the classroom there is a child in the classroom 复数句 （）（）（）in the classroom the backboard is()()()()the classroom A:B:No,it is not in the classroom 要用上in,your,classroom.急用! There is a child in the classroom变成复数句子 There is a child in the classroom.改为复数形式 There is only a desk in the classroom there is a desk in the classroom.怎么提问 there is a teacher in the classroom是什么意思. there is a teacher in the classroom是什么意思 Is there a black board in the classroom?怎么改错 there is a people in the classroom(复数句) there is a blackboard () the beautiful classroom填介词 girl in is a there classroom the 连词成句