. We must be______that this year might be the worst in recent times for our economic development. A....
2023-01-11 11:51:23 79次 吉林省2009-2010学年高二下学期期中考试试题（英语） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
. We must be______that
this year might be the worst in recent times for our economic development.
A. sensitive B. aware C.
serious D. bound
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