He is busy cleaning the desk up 这句话对吗,busy在此是什么词性?形容词?

He is busy cleaning the desk up 这句话对吗,busy在此是什么词性?形容词? she is ____(busy) cleaning the room. 1,He is busy cleaning the room.2,She is free after she finishes her calsses同义句转换! He is _____ busy today my mother is busy cleaning the room 为什么用cleaning 有什么语法 拜托别瞎回答 My mother is busy ______ the room.A.clean B.to clean C.cleaning D.cleans my mother is busy ____ the room.A,clean B.to ciean C,cleaning D,cleans My mother is busy cleaning the room.中为什么clean要加ing? Xiao Ming is busy _____ his room. A.clean B.cleaning C.for D.to clean she is ( )cleaning the bedrooma.sorrry b.free c.busy d.glad she is ( )cleaning the bedroom单线选择a.sorry b.free c.busy d.glad HE IS NOT CLEANING THE ROOM NOW （改祈使句） He is cleaning the blackboard. ______________________ 画线提问 He is cleaning his car(用yesterday改写句子) He is cleaning the classroom主动改被动 He is (cleaning the classroom ).( 对括号部分提问) He is (cleaning the classroom.)对括号部分提问 where is your father?he is on-------------( busy)where is your father?he is on-------------( busy)