选词填空 Exercise, Running track, makes... feel tired, Take care of, Watch out Running for an hour_______ me _______. There are thieves on the bus, so you should _______ your wallet. After sitting beside the computer for a long time, it is necessary to _______a few minutes as a rest. Before I go traveling, I have to_______ the timetable for the trains. In 400 meter running race, you can't run to the other's_______. When Li Na took part in the game saying other countries she had to _______herself.