A、wE CAnnot rEACh An AgrEEmEnt, lEt AlonE A spokEn promisE.
B、wE’D BEttEr DrAFt AnD thEn sign A writtEn AgrEEmEnt.
C、wE gEnErAlly kEEp our promisEs in BusinEss trAnsACtions.
D、wE hopE you unDErstAnD why wE ArE unABlE to kEEp our promisEs.