【题目】Considerable evidence has been found over the years ________lack of exercise is connected with increased risk of cancer.
A. whether B. that
C. why D. how
在线课程【答案】B
【解析】
考查同位语从句。句意：多年来，人们发现大量的证据表明缺乏锻炼会增加患癌症的风险。此处是that引导的同位语从句，说明evidence的具体内容。故选B。