______your enquiry No. 123, we are sending you a catalog and a sample book for your reference.
According
B. As per
C. As
D. About
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We have sent you samples by airmail______your instruction.
A. under
B. according to
C. as
D. base on
If you will make us your lowest quotation for air-conditioner, we shall regard as______a personal favor.
A. it
B. you
C. your lowest quotation
D. air-conditioner
Your E-mail of August 20 addressed to our Ningbo Office has______to us for attention and reply.
A. been passed on
B. passed
C. passed on
D. been passed through
As we are______the market for tablecloth, we should be glad if you send us your best quotation.
A. in
B. on
C. entering
D. at