he heard something about his mother that he did not know as

He learned something about his mother that he did He did not know where he could put his books He did know that. He pretended that he did not know the man. he has 承认 that he did not finish his homework he did not use to give his mother many problems He did not know _ to do about it. He did not know选择 Not until that moment did i know （ ） trouble he he did not know what he should do at that time.改为简单句.he give he acts as though he did not know anything 为什么时态不一样 英语翻译Not until he finished his homework did his mother allow