I found them playing football at five yesterday.这里的play为什么要用ing形式

I found them playing football at five yesterday.这里的play为什么要用ing形式 Coming into the room,I found them ______ at the table,_______ chess.A.seated; playing B.seating; playing C.seat; play D.seated; played she found nothing more interesting than them同义句She found playing computer games( ) He found the street much crowed He found them seated at a table playing chessHe found the street much crowedHe found them seated at a table playing chess第一个found后面为什么是ed 第二个就是ing呢 Fiften children are playing hide-and-seek.If only five of them are found ,how many children haven'tbeen found? I found Tom ____(play) games yesterday evening.答案是playing,为什么要填playing呢? I found many children playing sports on the playground.playing问什么不为played I saw them playing football on the playground just now 为什么只能填playing I saw them playing football in the playground 这里的 playing football 是动名词短语吗 when I went in,I found him ( )cards with friends.A.to playB.playedC.playD.playing 英语同义句转换I found that they were good.I found them ___ ___ good同义句转换,每空一次I found that they were good.I found them ___ ___ good. I think playing computer games is a w______ of time,so I never play them. 同义句转换：When I passed by,I saw them playing football.（改passed by) computer games is very_____.I'm_________in playing them. .【为什么】Computer games is very_____.I'm_________in playing them. A.interesting,interesting B.interested,interested C.interest I found him pkaying football 这里很明显是用playing做宾语补足语 I found the boy （ ）football. 这里括号里面可以填playing 和play 为什么第一个只能填playing I found him pkaying football 这里很明显是用playing做宾语补足语 I found the boy （ ）football.这里括号里面可以填playing 和play 为什么第一个只能填playing I saw them playing football in the playground 可不可以说 in the playground 是地点状语修饰playing吖 i _____（found by accident） their secret ,but i kept the secret for them