I saw an old man ____(lie)on the ground when I walked past.这里为什么要用lie的过去分词

we saw an old man ___(get)on a bus just now 是“I saw an old man fall down”还是“I saw an old man fell down”已看到摔倒的全过程 I saw an old man _____(lie) on the around when I walked past .I,around,an,man,when,was,down,fall,walking,the,saw,station,I,old I saw an old man ___ in the entrance hall when I came to the building this morning .I saw an old man ___ in the entrance hall when I came to the building this morning .A seatingB seat C seated D to seat I saw an old man k_____ down by a car yesterday.时态是什么 DOING? i saw an old man fall over on the street y( ) 1.This book ___(probable) costs no less tha 5 dollars2.An old man was sitting on the ground,___ (call) for help3.He was walking on the playground.A minute ago I saw him 合并为一句 A minute ago I ___ ___ ___ .4.The man is 40 years old,and he was once ,an old man ___(live)neaby When I was waiting at the bus station this morning ,I saw an old __ man.这个空填什么? when I was walkong in the street ,I saw a car ____ up to an old man. I saw an old man and the dog________（正在街上散步的） 填什么?I saw an old man and the dog _____(正在街上散步的）on the road 英语翻译I'm very very old,an old man. I saw an old man ____(lie)on the ground when I walked past.这里为什么要用lie的过去分词 I saw an old man___(to cross;crossing) the road I saw an old woman-------- (walk) outside the school gate As the curtain_,we saw an old man sitting in an armchair 为什么填rise? I saw an old man ( )sports in the park every morning!A.does B.do C.did D.to do选哪个正确,