If you have a deadline to meet,do let me know 这句话啥意思?

If you have a deadline to meet, do let me know 这句话啥意思? Please let me know if you have any______questions.A.further 英语翻译Let me know if you would like to do a catch up  If you want to go {a( )} else,let me know And if thats you Blow me a kiss to let me know if you feelin If you should change your mind,do let me know中的do什么意思 If you should change your mind,do let me know.虚拟语气在这句话中是怎么体现 If you ___ have any problems.don't hesitate to let me know do you have a pen pal?if not.do you want to have one?now let Blow me a kiss to let me know if you feeling If you meet with angthing,let me know. If angthing ____ ____ if you want to go to ( ),please let me know