请问I could not be more sure.

请问I could not be more sure. I could not be more serious here 请问Could not write file your disk may be 达人进~ I could not be harrier or more proud. 请问I wonder could it be为什么不是I wonder it could be? I could not bear I could not catch I Could be the one用中文翻译请问 could be和can be,could possibly和might just1.How old do you think he is?You mean the little boy who sits in that corner?Well,I am not sure.I suppose he (could be )about five years old.请问这里的“可能”用过去时（could）,不用can be the profile could not be things could not be better Believe it or not.I could not be a good girl. Not ready to let go,cause then I'd never know what I could be missing . I am not a clever man,but i could be a right man I asked the watchmaker if he could repair my watch,but he told me that it __.A can be repaired B could be repairedC could not be repaired D could repair by him请问这道英语单选选哪个呢?请告知为什么选那项,别的为什么不选?最 求一首英文歌,歌词里有this test could not be worsethis test could not be worse i am an engineering failure this test could not be worse i am an engineering failure won't you please hel I could not forget I could not forget i could not get it