问题补充:
By now, when one makes a large purchase, he should have opportunity to change his mind.
A. accurate
B. urgent
C. special
D. adequate
答案:
A. accurate
B. urgent
C. special
(答案→)D. adequate
解析:考查形容词辨析。A准确的;B紧急的;C特别的;D充分的,足够的;句意:到现在为止,当一个人在买很多东西的时候,他本应该有足够的机会来改变想法。故D正确。