题目内容：

    Runners never forget crossing the finishing line at their first marathon, and that will be especially true for Mike Kohler. When Kohler crossed the starting line in Fargo last Saturday, he thought he was going to run 13.1 miles, his first half marathon. Six hours later, he had "mistakenly” completed his first full marathon, 26.2 miles.

Kohler, a 26-year-old plumber (水管工) who now lives in West Fargo, had lined up for the half marathon that he hoped to complete in 150 minutes. He didn't realize he was in a starting fence with the full marathoners. Several miles later, Kohler began to realize he was on the course for the full marathon. "The 8-mile mark was when I figured out that I had made a mistake," he said. "Between then and 13.1, I debated with myself about what I should do.”

At some point — he doesn't remember when — he doubled down on the distance. "After I decided I was going to keep going, the thought of quitting didn't come back. Run, walk, or crawl, I wanted to finish," he said.

Until Saturday, Kohler's longest race was a 10-kilometer run, just over 6 miles. Even the most casual marathoners do a training run of 18 miles before the race. From his experience, he said he learned one thing: sometimes people can do more than they think they can.

After his long race, he went right back to work, put in a 10-hour day and then boarded a flight to Scotland for a vacation. "I was pretty sore, but I found the more I kept moving, the less sore I was, so I tried my best to go about life normally — minus running,” Kohler said from Glasgow. "I needed a break from that for a bit."

Not for too long, though. He's already considering the Bemidji Blue Ox Marathon in October.

1.When did Kohler realize that he made a mistake?

A.Before starting the race.

B.After running 8 miles.

C.When being with the full marathoners.

D.While lining up for the half marathon.

2.Which of the following best describes Kohler?

A.Determined. B.Cooperative.

C.Open-minded. D.Well-prepared.

3.What can we infer from the text?

A.He went to Scotland to get a break from work.

B.He had never trained for the full marathon before.

C.He decided to complete the race at the 8-mile mark.

D.He was debating with himself when he finished the race.

4.What might be the best title for the text?

A.Life Lies in Movement

B.Life Means Never Quitting

C.One Can Always Do More Than He Can

D.One Mistakenly Runs Full Marathon Not a Half