after-sales service是______
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But despite being essential for customer loyalty, after-sales service is a step that is______ neglected by most entrepreneurs.
A. never
B. seldom
C. often
since many of them are only concerned about selling a product and thus, end up missing an excellent opportunity of turning customers into recurring ______.
A. sellers
B. buyers
C. workers
When receiving the email, ______ realize that they are important to the company.
A. sellers
B. workers
C. users
This contact is part ______the after-sales service.
A. of
B. apart
C. before