l didn't know you were so busy ,这里怎么有两个过去式?

We Didn't Want You To Know 如题1 i didn't know you had called the police before l came here为什么是didn't 而不是don't l didn't know you were so busy ,这里怎么有两个过去式? 翻译：helped someone you didn't know? didn't you know?的回答, Didn't want to let you know. I didn't know you ______ill. In Case You Didn'T Know 歌词 we didn't know much about each other twenty years ago.we were guided by our intuition ;you swept me （1）If什么时候意思表示“是否”?（2）L didn’t know.Where will he go = L didn’t know Where he would go .为什么用would?（3）Here is _____ order ,All of you must obey it.(4) We watch the opening ceremong pf the World Expo on TV we didn't know what we should do next.(改为同义句）we didn't know()()next两空 We didn't know what we should do next.We didn't know what __ __ next “You did l m,didn't l didn't tell you to l don't know 与l didn't know的区别如题 用适当的指示代词、人称代词、物主代词和反身代词填空1.Do you know that woman?Yes,l work with ()2.l can't find my keys.Where are （）?3.We wrote to Tom but he didn't answer （） letter.4.l can't find my pen.Can l use （）? 用适当的指示代词、人称代词、物主代词和反身代词填空.1.Do you know that woman? Yes,l work with ()2.l can't find my keys.Where are （）?3.We wrote to Tom but he didn't answer （） letter.4.l can't find my pen.Can l use （ I'll do that you know that we both didn't say I was always on your side 中文翻译!