8. Several of our customers have recently expressed an interest in your water proof cameras and have _____ their quality. (A)inquired (B)inquired about (C)requested (D)requested for 。

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 。