29. Should you have difficulty _____ the order, we may be compelled to seek an alternative source of supply. (A)placing (B)fulfilling (C)postponing (D)canc elling 。

6. Much as we would like to do business with you, _____. (A)we are unable to accept your order at the price you requested (B)we will be pleased to fulfill your order No. A116 (C)we are prepared to give a further reduction of 5% i n our quoted price (D)we expect to receive a new supply shortly 。