Lost in thought,the professor didn't find his unbrella missing这句话为什么用missing,不用missed啊?

Lost in thought & lost in mind 翻译get lost in thought lost in thought 是什么用法 The notebook I ____ I_______ is in my school bagA think lost B thought had lost C think had lost D thought have lost lost in thought , he almost ran into the car in front of him 为什么这里用lost,不用losing （lost）in thought,he almost ran into the car in front of him. 为什么填lost he sit in the chair,___(lost)in thought 用哪种形式?为什么? 翻译Lost in thought and lost in time. When the teacher came in,he wae sitting at the desk,____in thought.A.being lost B.losing C.lost When the teacher came in,he wae sitting at the desk,____in thought.A.being lost B.losingC.lost 英语中分词being done 与 having(been) done区别是什么?如Lost in thought，he didn't feel the pain.为什么不用Being lost in thought或Having been lost in thought？ Those who thought the matter,in the process,we are we lost.翻译的准一点 ________ is thought,he almost ran into the car in front of himA.Losing B.Having lost C.Lost D.To lose应该是in thought He became lost in thought是什么意思? lost in thought与be lost in thought的区别1.Lost in thought,he forgot his meals.Q:Why not use be lost in thought? 2.The goverment is deeply concerned about the education of the poor areas in the southeast of China.Q:Why not use is showing deepl The girl,_behind me,was lost in thought填Seated 还是Seating Lost in thought,he almost ran into the car in front of him.为什么开头用LOST不用LOSTING或HAVING LOST Lost in thought,he almost ran into the car in front of him.为什么用 lost 而不用 losing主语是he,不是主动失去,