He knew he had made a mistake ,so he come forward with his head _____.A hang up B hanged down C hanging down D hanging offWhy?

这里的made it He told her that he already had too many students.He made it clear that he would listen only because he knew her friend. He knew he had made a mistake ,so he come forward with his head _____.A hang up B hanged down C hanging down D hanging offWhy? Frank could hardly conceal his excitement ,for he knew that he had made a real discovery为啥是conceal而不是concealed呢? He told as if he knew everything.还是He told as if he had known everything. he knew tha he had found the kind of man he wanted怎么翻译 he could't help to sing when he knew he had passed the exam He spoke as if he _______everything.a.knew b.had known 请指教该选哪一个? But he knew that none of that mattered now because he had found the temple.翻译 he knew nothing about her He thought I had known the fact.But a____-,I knew nothing about it. By the time he was fourteen,he___ what he wanted to be when he___ upA.knew;grows B.knew;grewC.had known D.has known;grows I knew I couldn't finish my homework ( ).A.by he had come B.until he came C.when he comes D.before he comes he regretted what silly mistakes he had made中为什么用what而不是that,how what did Tom say in his letter,Nancy?He said that he (made,makes,has made,had made)lots of friends since he went to Hangzhou He knew e___ what they had done and what they would do.Who had told him everything? She made no doubt of what he had said为什么用made 倒装高手请进Only when he had done it___that he had made a mistake.a.he had realizedb.had he realizedc.did he realized.he did realize选择哪个?为什么?我水平太差请说详细一下,谢谢! Thought he had often made his little sister cry,today he was made(cry)_____by his little sister.