We thank you for your letter of May 25 and the____catalogue.
A.sent
B.enclosed
C.given
D.presented
The letter we sent 2 days ago is an enquiry____color TV sets.
A.about
B.for
C.of
D.as
When____an enquiry, you ought to enquiry into quality, specification and price, etc.
A. making
B. offering
C. sending
D. giving
Your full cooperation will be highly____.
A. thank you
B. finding
C. found
D. appreciated