We are pleased to say that we are（）to supply you（）the goods you want. of a position，──。 at a position，──。 in a position，with。 at a position，with。
（），we are airmailing you our latest quotation-sheet. A．As request。 B．At request。 C．As requested。 D．At requested。
We have received your letter of September 12，（）we are glad to know that you are interested in our electric heaters. which。 atwhich。 fromwhich。 inwhich。
We shall do everything possible to assist you in（）a mutually beneficial trade. developing。 developed。 develop。 development。
We will consider（）your terms of payment. accepted。 to accept。 accepting。 accept。
We have to point out that the post ponement of the fulfilment of the contract（）caused us certain expenses.
