We hope that it will not ______ you from doing business with us in the future.

We hope that these generous discounts will bring about a substantial order.()

We hope that we may have an opportunity of cooperating with you() your business extension.

A、to

B、in

C、into

D、on

As it involves only a small ______ , we hope you will have no difficulty on promotion.

A．quality B．figure C．quantity D．number

A.as

B.how

C.that

D.what