为什么the classroom of the students,students不用名词所有格急

come out of the classroom There are many pictures on ( )A,the classroom's wallsB,the walls off the classroomC,the wallls in the classroom应该选哪个,为什么?B,the walls off the classroom 改为B,the walls of the classroom at the back of the classroom中文翻译 为什么the classroom of the students,students不用名词所有格急 All of the students are not in the classroom.这句话的真正意思是什么?为什么? 为什么“It's helpful of you to help me clean the classroom”为什么要用helpful? There are many pictures on ______A．the classroom 's walls B．the walls of the classroom C．the walls in the classroom 为什么不选C为什么不选C come out of the classroom的中文 the walls of our classroom是什么意思 The windows in还是of our classroom run out of the classroom是什么意思? He sits at the back of the classroom.He___ __at the bank of the classroom. 3D goes into classroom 为什么classroom前没有the I saw some villagers ____at the back of the classroom,listening to the headmaster.为什么选seated 而不是sitting? _these words,the teacher went_the classroom.A,after,out B,By,out of C,with,out of选择?为什么? the classroom's 我从网上下的题是二选一的，the classroom's door和the door of the classroom There tree is in front of the classroom.对 in from of the classroom 提问、 The walls of our classroom are white,对white提问.( ) ( )are the walls of our classroom?