We shall do everything possible to assist you in ______ a mutually beneficial trade.

Weregret______toacceptyourtermsofpaymentandthereforehavetoreturntheordertoyou.

Weshalldoeverythingpossibletoassistyouin______amutuallybeneficialtrade.

We ____ some brochures ____ to illustrate the types of materials we manufacture.

We have made ____ that we would accept terms for your present order.