By joint efforts we can ___ both friendship and business.( )

We shall advise you by cable as soon as the goods ____ .)

Our payment terms (付款方式)are ___ , irrevocable letter of credit for the full invoice value.( )

Will you send us _____ return mail pamphlets and price list ____ your exports?

We shall certai nly con tact you, as soon as we are ____ a positi on to en terta in new bus in ess in your district.