please do not hesitate to contact me __ you would like any further information.A.if B.provided但是为什么不可以选A 这两者有什么区别?

Please do not abandon Please do not hypocris please not do 还是please not to do Please do not () late again Please do not stop loving presonal items.please do not please do not distrub是什么意思 please do not do unnecessary reten tion 关于please的词组是please do not do sth.还是please not do please not do st.还是please don't do st. please not do 还是please don't do?为什么? Could you please+ not do还是not to do? 老师,please not do sth 还是please do not do sth In the work,please do not disturb do not stand o------.come in,please . please do not smoke什么时候+ing please tell him____(not do)the work do not callshe lily,please 改错