I must understand the total due also?

I must understand the total due also? i must learn all subjects well and understand a lot. I understand Fill in the blanks with proper modal verbs1.—Could I use your dictionary?——Yes,you ___________.2.---Must we finish the work tomorrow?---No,you ______________,but you must finish it in three days.3.How _____ you say that you really understand th If one day I understand what is love,it must be because you are.Ll 请问“I understand that this must be done right now.”怎么翻译? I think I understand i understand什么意思?i understand Very good ..You can understand my means now..I think you must put your heart in english :-). i hope you understand I understand you better You lie,I understand. Can you understand?I I do not understand! Can you understand?I sry i didnt understand I do not understand I understand your