In case we come to an agreement,it would be necessary for you to commit yourself to place orders for a certain quantity every month.In this way we shall be able to ensure regular supply.

In case we come to an agreement,it would be necessary for you to commit yourself to place orders for a certain quantity every month.In this way we shall be able to ensure regular supply.

A.一旦达成协议，你必须保证每月订购一定数量，这样我们才能确保经常供应。

B.一旦达成协议，你方须承诺每月订购一定数量，这样我们才能确保定期供货。

C.如果我们达成协议，你方必须承诺每月订购一定数量的货，这样我们就能保证正常供应。

D.万一我们达成协议，你方必须确保每月订购一定数量的货，这样我们就能保证定期供货。

正确答案是B