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
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30. We regard customer complaints as an opportunity to_________ our service.
A) bring
B) receive
C) improve
D) obtain
31. We took advantage of its sports facilities________ staying at the hotel.
A) although
B) while
C) until
D) unless
32. It has been decided that Mr. Li will________ the company when the CEO retires.
A) put off
B) call for
C) bring about
D) take over
33. The study shows that some students have difficulty _______long English texts .
A) reading
B) read
C) to read
D) to be read