Complex equipment requires operators who are specialists; （ ）we must train operators to become specialists

Anyone（ ）the necessary background may apply for the position.

In order to comply with the customer's specifications, the factory had to make several ______ in the design.

We are extremely sorry about this delay,（ ）you will realize was due to circumstances beyond our control.

Our department made more sales than（ ）.

Under these conditions the exporter has to make additional investment to raise the capacity of the ______ for producing export goods.

The two national banks shall _______ each other for payment arrangements.

We consider it is necessary for you to _______ the establishment of the L/C, so as to us to _______ carry out the order smoothly.

Please remit the _______ to our account with Bank of England, London.

Owing to your cooperation in negotiations on price and terms and conditions, we have _______ a transaction.