We should first _____ our appreciation for the enquiry.
A. say
B. tell
C. express
D. speak
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We should encourage the customer to ask you for _____ information
A. many
B. much
C. more
D. a lot
Before ______ quotation, we should have a comparison between your products and other identical products
A. making
B. make
C. made
D. maken
Their purchase quantity are ______ so that they won’t make the same offer.
A. varying
B. variety
C. vafiried
D. various
they have inequable for products quality and packaging.
A. required
B. requirement
C. requirements
D. requiring