Question

【题目】In order to keep cool, many people go swimming _______ summer．

A. in B. at C. on D. to

Answer 1

【答案】A

【解析】句意：为了保持凉爽，在夏天很多人去游泳。in泛指在上午、下午或晚上；在季节、月份、年代前；at在具体时刻；on在具体某一天、星期；to到…。空后的summer是夏天，故应选A。