We are glad that in the past few years,（）joint efforts,have greatly promoted both business and friendship.

If you will send us a catalog by air,we shall（）very much.

We（）some brochurs（）to illustrate the procucts we manufactured.

We are awaiting your revised draft（）keen interest.

We have established an irrevocable letter of credit（）your favour with the Bank of China,Guandong．

（）you know,this is a popular brand,which can see easily in our market.

Our foreign trade policy is based（）equality nad mutual benefit.

We trust the mentioned shipment will reach you（）sound condition.

We wih to acknowledge receipt of your letter of March 15,（）reached us yesterday.

Please take the necessary steps（）delay.