I saw a boy ( )under the tree just now A :to stand B:standing C:stood D:was standing 选哪个?

I saw a boy ( )under the tree just now A :to stand B:standing C:stood D:was standing 选哪个? I saw a qig_(lie) under that tree just now I saw a boy ____(run)from the cinema then. i saw a saw saw a saw. i saw a boy.the boy was playing with a cat.i saw a boy _ _ _ _ a cat合并为一句 i saw a saw saw a I never saw a saw saw a I saw a saw swa a saw. I saw a girl dance under the tree yesterday.变为被动语态 suddenly, i saw a purse under the seat in f_____ of me. I saw Mary.Mary was reading under a big tree.合并为一句 i saw a man saw a saw with a saw I saw a boy fall off a bike,这句话saw用了过去式,为什么fall不用? i saw a boy _____(play) football in the street when i came back I saw a little boy trying when i passed the park passed能改成passing吗? 趣味翻译 I saw a saw saw a saw I saw a saw saw a saw的中文意思 I have never saw a saw saw a saw是什么意思?