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

He sat there,with his mind focused on his work中为什么用focused不用 he sat there with his hand ___. 独立主格构成He came into the room,his ears red with cold.这句话中的独立主格 with的独立主格怎么用? He sat there with his cardboard sign and his dog.翻译 We sat there ,---------with 独立主格(with复合结构做独立主格) with的复合结构与独立主格 独立主格和with 的复合结构 He comes to Beijing on his family为什么用on不用with He sat there,with his hands tied behind．他坐在那里,手被捆在后面 He stood there with his eyes ____me.