When the seller receives the buyer’s counter-offer, and he finds some terms and conditions unacceptable to him, he will state his own opinions in a letter, which is called as _____。

Taking into consideration our long-standing business relations with you, we accept ___by D/P.

Our bank offers minimum interest ______ for seller financing and for loans of cash.

We should be pleased to send you some samples of our new typewriter on approval,______ our own expense.

If you can make us a firm offer at a ______ price, we will place an order with your corporation.

We would like to take this ______ to establish business relations with you.

We place this order ______ the understanding that the discount is 10%.

Your delay in shipment will______ us in great difficulty.

The letter we sent last week is an enquiry _______ color TV sets.

An order is a request to supply a specified quantity of goods, which may result from________ or_________ with subsequent quotations.