We believe such an agreement will prove ____.

Wehave______at30days’sightfortheamountoftheinvoice.

WearegladtoreceiveyourtelegraphicorderofMay6,______regretthatwecannotsupplythegoods______theendofMay.

We regret ______ to accept your terms of payment and therefore have to return the order to you.

We are willing to renew the agreement on the same terms ____ last.