he entered.looking dirty and tired .carrying a suitcase.为什么用looking dirty .可以换成looked dirty吗/

he entered.looking dirty and tired .carrying a suitcase.为什么用looking dirty .可以换成looked dirty吗/ 请选择并讲解He ___hardly ___the station when the train___A.had,entered ,had left B / ,entered ,left C .have ,entered ,left D.had ,entered ,left the president stood by a window inside the room,___,looking over the square A where i entered B into which i entered c which i entered d that i entered he was still smelling when the door opened and his wife__A.went in B.entered in C.entered D.entered into选哪个?为什么D,B不行? Kathy made every effort to learn all subjects well,looking forward to ___ a famous universityA.enter B.entering C.entered D.be entered He was still smiling when the door opened and his wife____/A.went in B.entered in C.entered D.entered into ____the room,a letter was laid on the ground.A.Entering B.Having entered C.He entered D.Mrs Gr （ ）the room,a letter was found on the ground.A.Entering B.Having entered C.Entered D.He entering he ____ the kitchen to find something to eat. A come into B entered into C came D entered He is good at _____ a map A.looking B.looking at C.seeing D.reading Mary likes him.As he is____A.beautiful B.Good-looking C.good-look D.good looking ____the room,a letter was laid on the ground.A.Entering B.Having entered C.He entered D.Mrs GrD.Mrs Green entering 为什么C不行呢 The children all turned the famous actress as she entered the classroom.A.looked at B.to look at C.to looking at D.look at He paid for a seat,when he ----have entered free.A.could B.would C.must D.need he paid for a seat ,however,he ___have entered freeA could B would C must D need 为什么选A ..选哪个,为什么请从语法上讲一下选择的原因谢谢啊He was still smiling when the door opened and his wife _________A.went in B.entered in C.entered D.entered into Hardly ______ the room when he told me the secretA,I entered B.I had entered C .did I enter D .had I entered及这种倒装句的结构 Though it's too late,he still goes on ( )the useful information on the Internet.A.looking at B .looking after C.looking up D.looking over