—— We should adopt methods to deal with some incidents. You know, anything could occur in that situation.
—— I got it. Thank you for reminding me.
A. flexible
B. typical
C. positive
D. concrete
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(答案→)A. flexible
B. typical
C. positive
D. concrete
解析：考查形容词：A. flexible灵活的B. typical典型的 C. positive 积极的D. concrete具体的，句意：--我们应该采取灵活的方法解决一些问题，你知道在那种情形下，任何事都可能发生。--我明白了。谢谢你的提醒。选A。