第 21 至 25 題為題組
       Being hit by lightning is a rare event. Over the course of an 80-year life span, the odds of being hit bylightning are 1 in 3,000,   21    the probability of being struck seven different times. Roy Sullivan, a parkranger in the United States, was struck by lightning more recorded times than any other human being. Overhis 36-year career, Sullivan was struck by lightning seven times—and   22     each shock!
       Strikes one, two, and three were pure bad luck, he thought. But after strike four, Sullivan became   23  death and took precautions during lightning strikes. Strike five occurred in 1973 when Sullivanwas on patrol. A storm cloud “chased” him until he was struck. The same thing happened again in 1976.Sullivan, while surveying a campground, felt that a cloud was   24      him, and tried all he could to run—but it got him anyway. Finally, on 25 June 1977, a seventh and final bolt struck Sullivan as he was fishingin a pond. “I don’t believe God is after me,” he theorized. “If he was, the first bolt   25     enough. Best Ican figure is that I have some chemical, some mineral, in my body that draws lightning. I just wish I knew.”
【題組】21.
(A) if it isn’t
(B) as you can see
(C) not to mention
(D) with regard to