tired as he was,he worked still midningt为什么这句中as不能换成though,though不能倒装吗?

____, he couldn't keep his eyes ____.A. Tired as he was... open B. As he was tired...open C. Tired as he was... opened D. As he was tired...opened 答案是B, A错在哪里? Tired as he was,he sat up late.这里的as的位置怎么讲 倒装句13.____,he sat up late writing his book.A.As he was tiredB.Tired though he wasC.Tired as was heD.It is because he was tired我选的Awhy tired as he was,he worked still midningt为什么这句中as不能换成though,though不能倒装吗? ..50分1._______,he sat up late preparing the opening speech for Auto Shanghai 2007.A.as he was tired B.tired though was he C.tired as he was D.it is because he was tired 2.his interest is flying.when studying at Yale University,he _____ set up the Y Tired he was,he went on working without any rest.A because B when C since D as Brown was very tired when he came back from his office.As usual,he said nothing to his wife As he was so tired he soon fell_.A.slept B.asleep c.sleep d.sleeping 选哪个?为什么? Dr Bethune worked hard as if he ______.Dr Bethune worked hard as if he ______.a.never had felt tired b.had never felt tired c.never felt tired d .was tired never he w as sleeping alll day long. he was sleeping during ___ ____ ___ He works with such enthusiasm as though________A.he never feels tired.B.he never felt tired he was too tired ,so he asked his mother not ( ) he was so tired that he felt____(asleep) 3.He _,so he was very tired.快 He ___ (say) he was a little tired now He was tired,but he went on___(work). 请英语高手帮我做一下这几道题(第二组） 1.________,he had no time to rest．A．As he was tired B．If he was tiredC．Tired as he was D．Now that he was tired 2.The doctors are ________ about the guidelines under which they can carr He was not a bit tired.和He was not a little tired.有什么区别