单项选择题

______ you have any problems with the machine, consult Mr Paul N. Hiatt, who is one of the most experienced mechanics in our factory

(A) Had
(B) Would
(C) Should
(D) Were
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______ oil prices continuing to rise, economists predict that consumers will cut back on spending in other areas.
(A) About
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As far as marketing is ______, every opportunity we have to meet new people is an opportunity to grow our business.
(A) intended
(B) concerned
(C) reached
(D) designed
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