there are （ ） on the floor A.some box B.some boxes

there are （ ） on the floor A.some box B.some boxes There are some boxes on the floor 否定句 There are some boxes on the floor.如何变成一般疑问句? There are some boxes on the floor.变一般疑问句时需要把some 改成any吗? There are some knives in these___.A.box B.boxes C.boxs There are a( )some restaurants on the first floor There are some cups on the floor.一般疑问 There are some offices on the stadent floor.(改成单数) there are some pieces of paper on the floor.Janet ____ A pic There is ____ stone on the floor.A.a B.some C.any There are some on the ground A,leaf B,leafs There are some cards on the floor.（改成一般疑问句）