listen!someone is knocking at the door.------ must be my cousin 空格填什么that?this?it?为什么?

Listen!Someone is k__ at de door Please (listens,listen,to,listen,listening).Someone is coming. 为什么下面句子中Listen不可以换成Hear?Listen!Someone is crying.Listen!Someone is crying. 单句改错：listen!someone is knocking the door listen! someone is knocking _ the window填什么 listen!there is someone ()(sing)in that buildingsing的形式 Listen,l hear someone knocking at the door的同义句 Listen!There is ()() at the door 用适当的形式填空 listen!someone is （play）the piano Listen!someone is singing there .it ________ beautiful.Ahers Blistens Csounds Dlooks. Listen!Someone is singing next door.Who ( ) it be?填can还是may? 一道同义句转换题,1.Listen!I hear someone knocking at the door.转换 ：Listen!There is _____ _____ at the door. Listen!There _____ someone singing in the next room .1 has 2 have 3 are 4 is 2.Listen!Someone ____ in the next room.A.sing B.singing C.is singing D.are singing listen!someone is knocking at the door.------ must be my cousin 空格填什么that?this?it?为什么? Listen!Someone is knocking__the window.这句话是填at还是on那?两者有什么区别? can you listen someone cry 还是 someone crying啊 listen!Someone ____ (sing) in the room. Listen:Someone ______(knock) at the door.