He didn't finish ____his own work,but he stopped ___me.A.doing...helping B.to help...to helpC.doing...to help D.to do ...help

We didn't have enough time.We couldn't finish the work.(合并句子) We didn'We didn't ___ ___ ___ ___ finish the work. he didn't finish his homework yesterday改为被动语态 He didn't know what he should do.(改为简单句)He didn't know ___ ___ ___. he did't plan his time well .he didn't finish the work合并 He didn't finish his homework.The reason is that he didn't feel well yesterday.改成定语从句. He failed to finish the work on time.=He didn't _______ ________ to finish the work on time. He didn't go to bed until he ______(finish) his homework .适当形式填空 he was criticized because he didn't finish the work的倒装 my brother will continue working until he __(finish)itThey didn't leave till___(finish)the work he have no finished his homework,he doesn't finish his homework,he didn't finish his homework有什么区别? Tom pretended _______(finish) his homework.In fact,he didn't. Tom___(do)his homework at half past four yesterday afternoon,but he didn't finish it He didn't finish the work at all 的同义句 tim didn't finish his homework,so he a_______his teacher as much as possible As a ______（后果）,he didn't finish his homework on time If he doesn't finish it.She can't do it,either.(改同义句）If he doesn't finish it,___ ___ she. didn't finish和have not finish的区别请问以下2句有什么微妙的区别吗：1.He didn't finish his homework.2.He hasn't finished his homework. 地道翻译谢谢.He didn't care what he looked like to others;he only cared about finish the task.