The government must be very about setting a policy, making no decision until they are quite sure it is the right one.
A. particular
B. concerned
C. cautious
D. certain
网友回答
A. particular
B. concerned
(答案→)C. cautious
D. certain
解析：句意：政府在制定政策时一定要谨慎，直到完全确定是正确的才能做出决定。be particular about对……挑剔；be concerned about关心；be cautious about对某事谨慎；be certainabout有把握。根据句意故选C。