15.We are offering you firm ____ on the same terms and conditions as the previous contract.
A.as following
B.as follow
C.as is following
D.as follows
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1. We are very pleased to confirm ____ 1,000 tons of white cement.
A.ordering
B.having ordered
C.to order
D.order
2. Following your order ____ 400 pieces of electronic toys last year, we are pleased to receive your order No. 234 ____ the same quantity.
A.for, of
B.of, of
C.of, for
D.with, for
3. We place this order ____ the understanding that the discount is 10%.
A.based on
B.with
C.on
D.through
4. A sales confirmation should be counter signed by ____.
A.the seller
B.both parties
C.the bank
D.the buyer