阅读下面短文，从每题所给的A、B、C、D四个选项中选出最佳选项。16．（15分）ㅤI've been motivated﹣﹣and demotivated﹣﹣by other folks' achievement s all my life. ㅤWhen I was a teenager，a neighborhood friend（8） of entering cycle races until I flew to San Diego to visit my sister.While she was at work one day，I
