Complete the sentences with can, cant, have to or dont have

Complete the sentences with can, cant, have to or dont have to. In tennis you ... touch the net with your хэнд or racket. In tennis you ... hold the racket with your left хэнд. In football, goalkeepers ... run all time. In horse-riding, you ... wear a riding hat. In undwater hockey, you ... wear flippers but they help you to swim quickly.