what is on the floor?there is.A、a book and a baseball and some CDsB、a book,a baseball,some CDs,C、a book,aaseball and some CDs D、a book,abaseball or some CDs

what _____(happen )here?there is blood on the floor. 连词成句 is what on under that the the chair floor it doesn't matter what floor the opportunity is on.这句话怎么翻译 动词时态完型填空：What __(happen) here There is blood on the floor. The music room is on (one)floor. My classroom is on the third floor My classroom is on the ground floor. My flat is on the t____ floor. A cinema is on the second floor The floor above the ground floor is the first floor.为什么不用on 用above What is on the floor?的回答是That is my key.还是there is my key. The room is dirty.What ______ you ______ (do) just now?I ______ (throw) the paper on the floor. IS the library on the secod floor?是 where is the library?Is the library open now?what time si it?when is the library open?什么 意思？ the book is on the floor对画线部分提问on the floor 是画线部分 4.The music room is on the first floor.(对on the first floor提问? the seadfood section is on the second floor.对on the second floor进行提问 1)There is( )on the floor.What is it?2)They often help( ) ( ).They are like brothers and sisters. Is the backpack on the floor No,it is 改错