跑八百英文

800-meter long-distance running race

Long-distance race of 800 meters

This Friday afternoon of physical education to run 800 m

Pete ran 800 meters.皮特跑了800米

It is demanded to take a 800 meters middle-distance race(中长跑) this Friday afternoon.It is requested to test a 800 meters run this Friday afternoon.It is required/planned(2选1) to take a 800m testing this Friday afternoon.本句未出现主语，只是对未来某时间段的预测、安排，故宜以it is+verb(被动式)+to do的结构供参

This Friday afternoon's physical education to run 800 m 这周五下午的体育课要跑800m