Look!A policeman（ ）(chase) a young man.正确形式填空怎么填啊?

Look!A policeman（ ）(chase) a young man.正确形式填空怎么填啊? the policeman finds a boy（ ）【原型是look】out of the window of the bus 附带讲解 Look,a policeman is on duty ________(不远处) 怎么Look,a policeman is on duty ________(不远处) 怎么填啊啊 look over ,around the corner is walking a policeman不是全倒吗?为什么不是 look over ,around the corner walking is a policeman he is a policeman .（一般疑问句） 求英语倒装解析2、Look over there.______!（2007年安徽,22）Around the corner is walking a policeman.Around the corner is a policeman walking.Around the corner a policeman is walking.Around the corner policemen are walking. I am a policeman.(对画线部分提问）【是am a policeman部分】 My uncle is a policeman.(对划线部分提问）划线部分是a policeman. Mr Li is a policeman.(同义句） Mr Li _____ _____ a policeman. He may ba a policeman 同义句 （ ）he is a policeman look at the picture ___ the policeman I am a policeman? I am a policeman. Policeman stops a a policeman什么意思 Look A policeman is climbing into the room____the open window to save the child.A.acrossB.throughC.overD.past Look!A policeman is _(use hands to make sth or sb move forward)the thief into the police car. He is a （policeman） （对括号部分提问）