Question

【题目】It is reported that the disease is spreading, and all children under five are at (risk).

Answer 1

【答案】risk
【解析】句意：据报道疾病在蔓延，五岁以下的孩子处境危险。at risk固定短语，“处境危险”，risk用单数形式，前面也不用冠词。故填risk。