26. It is the management_________ has to make sure its staff are not overworked.
A) what
B) that
C) which
D) whose
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27. Most people in this region think that they should_______ heavy industry.
A) develop
B) supply
C) take
D) make
28. _________you are a first time buyer or not, we will offer you a good price today.
A) Whatever
B) Whenever
C) Whether
D) However
29. Our purchase decisions are generally made __________the basis of price,delivery dates and after-sales service.
A) with
B) over
C) in
D) on
30. We regard customer complaints as an opportunity to_________ our service.
A) bring
B) receive
C) improve
D) obtain