填空题
We hereby register a claim with you（）the basis of here,we can obtain a number of orders for you.
on
填空题 Your quotation happens to be exactly the same（）we have received from Australia.
填空题 As we are heavily committed,we are sorry that we are not in a（）to accept new orders.
填空题 We shall book a trial order with you,（）goods are competitive in price and of good quality.
