He sat there,with his mind focused on his work中为什么用focused不用focusing

he was sat there he sat there with nothing __ except play with her cat.doing 我想知道原因 He sat there,thinking.对吗. He sat there with his cardboard sign and his dog.翻译 He sat there,with his mind focused on his work中为什么用focused不用focusing what did he do there?he sat there and watched his son ____ a dog.A.plays to B.is playingC.play with D.played with 英语翻译Buried in thought,he sat there. 独立主格中有时为什么用with,不用with 不行吗?比如He sat there thinking, with his chin on his hand,这里不用with不行吗 3.He sat there.He said nothing.(同义句) He sat there ___ ___ _____. he just sat there with his mouth open.为什么后面的open 不用非谓语动词呢? I sat there with out saying-----,wondering how he know about my pain 空格用somethingeverything,anthing ,nothing哪个,为什么?. I sat there with out saying-----,wondering how he know about my pain 空格用somethingeverything,anthing ,nothing哪个,为什么? He sat there,with his hands tied behind．他坐在那里,手被捆在后面with是什么结构 修饰动词的么?可以是tied hand么 He went there with是什么意思 He sat there for a long time w___ doing anything T______the exam,he sat there without writing a single word. he sat there and didn't do everthing?找出错误 这个英语语法题怎样解释?He just sat there with his mouth __________.a.to open b.opening c.open d.opened我选b.