请教一个单句改错：The policeman caught the thief by his arm.4.The policeman caught the thief by his arm.

请教一个单句改错：The policeman caught the thief by his arm.4.The policeman caught the thief by his arm. 单句改错 单句改错! 单句改错, Please give the book me单句改错 How cool the boy is!单句改错 单句改错 who is the men knocking at the door He escaped the hunter/the big fire单句改错 速回 Bill can takes the subway to school 单句改错 I want to travel around in the world 单句改错 the brother and sister are very like单句改错 单句改错：listen!someone is knocking the door Have a look for the picture.(单句改错） 单句改错 the man looked about and found none around. 单句改错:Penguins from the South Pole(南极) lucy played violin at the party yesterday evening单句改错 Pandas only live in the wild in Australia.单句改错 class start at 8:00 in the morning.单句改错