The athletic man runs for long distances without needing to rest.其中need为什么是ING形式?

The man started ___(run) The man ‘could be’ run for exercise . olympics run for about two weeks and the summer athletic events are (divided)into categories.为什么不是separated look at the man——（run)down the street, Why does the policeman run after the young man?回答 Athletic athletic athletic The athletic man runs for long distances without needing to rest.其中need为什么是ING形式? NIKE半袖 The athletic department The man put on his coat and___(run)aways quickly the young man was seen to ___(run)just now The man might___(run)to catch a thief The man ____(quick) run away说明原因 both man started running through the tree 改成both man run through the tree 不行吗? the man is wearing sports clothes.he must - for exercise.A.running B.be running C.run D.to run when the man sees the policeman,he wants to run off. the man was seen ____ away with somethingA to run B run C being runC to be running请问这里为什么填to run?