i saw the ground fell away and down to the

i saw the ground fell away and down to the I saw him playing football on the ground just nowplaying on the ground 是谓语？ i saw a pocket on the ground ,and i picked up it改错题 On the Tuesday ,I saw a wallet on the ground哪里错了 I saw a purse____[lie] on the ground on my way home . I saw a stage built about a foot and a half above the ground. 英语句子改写,谢1.To learn to play tennis is not difficult. ( )( ) not difficult to learn to play tennis 2.I saw that he was lying on the ground just now I saw ( )( ) on the ground just now i saw that the ground fell away and down to a river,far below me,快同上 怎样理解：I saw that the ground fell away and down to a river.down是什么词 在这里 I saw her( ) on the ground just nowA.lies B.lying C.lay D.is lying说明理由 She saw a bag on the ground 保持句意On the ground a bag______her________. Yesterday I saw a wallet l___ on the ground when I was walking in the street. 这里该填lie还是lying请给我讲解一下,谢谢 Suddenly he saw a watch on the ground 改句子Suddenly he saw a watch on the ground 保持原意.Suddenly a watch on the ground ___his ___. 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 a saw ,and sawed the when our plane took off,I saw the things on the ground __smaller and smaller.A.becoming B.become C.to become D.get完形填空 i saw a man sleeping on the ground i saw a women lying on the grass请问里面的sleeping和lying分表在句子充当什么成分?不是进行式吧? I saw the man saw with his saw.的中文