6. We would appreciate your sending us a trial order, which we ______ with keen interest.( )
A. are waiting
B. await
C. await for
D. are awaiting
7. We should be pleased to send you a sample ______ our expense.( )
A. at
B. in
C. against
D. of
8. In view of our great performance last year, business ______ our two countries will develop further.( )
A. in
B. on
C. between
D. at
9. A sales confirmation should be countersigned by ______.( )
A. the seller
B. both parties
C. the bank
D. the buyer
10. As agreed upon in our negotiations, payment ______ L/C.( )
A. by
B. is by
C. will be
D. will by
