填空题 It is forecast that heavy rains are 1 to flood the area in a few days.
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【正确答案】 1、frightening    
【答案解析】解析: It is forecast (预测)that heavy rains are threatening(危险的) to flood(淹没)the area in a few days. 据预测,几天之内暴雨有淹没该地区的威胁.