I watched the boys __(play) football just now . 应该填playing 还

I watched the boys __(play) football just now . 应该填playing 还 did they see the aliens （play）football just now 应该填什么形式 I saw him playing football on the ground just now I saw many boys playing football just now 改为被动语态 I am（）.playing football playing the football play football I am watching the boys playing football now.改被动语态 What fun they had __(play)football outside just now I found some boys( ) football on the playground just now A.t I saw him ____football just now.是填play还是playing I u_TO play football ,but now i like playing basketball. I saw them playing football on the playground just now 为什么只能 I saw the boys( )just now.