请问 I didn't know和little did i know的区别

请问 I didn't know和little did i know的区别 i don t know和I didn't know的区别 I didn’t know 请问i wouldn't know和i don't know的区别是什么? 两个简单的英语语法问题,I don't know和I didn't know有什么区别额? I didn't know him well,neither did Jeff.英译汉 so little did i know aboout. I don't know anything 和 I don't know nothing的区别 I didn't know the answer,__.A.so does heB.so did heC.nor did Did you_____the news?-No,I didn't.I know nothing about it.A. I didn't pretend to know him 和 I pretended not to know him 有 I didn't know when they____again.