阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

According to a review of evidence in a medical journal, runners live three years _ 61 _ (long) than non-runners. You don’t have to run fast or for long _ 62 _ (see) the benefit. You may drink, smoke, be overweight and still reduce your risk of _ 63 _ (die) early by running.

While running regularly can’t make you live forever, the review says it _ 64 _ (be) more effective at lengthening life _ 65 _ walking, cycling or swimming. Two of the authors of the review also made a study published in 2014 _ 66 _ showed a mere five to 10 minutes A day of running reduced the risk of heart disease and early deaths from all _ 67 _ (cause).

The best exercise is one that you enjoy and will do. But otherwise…it’s probably running. To avoid knee pain, you can run on soft surfaces, do exercises to _ 68 _ (strength) your leg muscles (肌肉), avoid hills and get good running shoes. Running is cheap,easy and it’s always _ 69 _ (energy). If you are time poor, you need run for only half the time to get the same benefits as other sports, so perhaps we should all give _ 70 _ a try.