第21题: [单项选择]Kids may be spending too much time in front of computers and televisions, but are interventions (干预) designed to curb (抑制) that working An analysis of several reports finds that some do, but (67) may be needed.A. set B. gain C. cover D. turn 参考答案:A 答案解析:[解析] 动词辨析题。分析句子结构可知,intervention后的that引导定语从句,此处填入的动词与definite goals搭配表示“设定明确的目标”,因此选择set。 [避错指导]