UNIT 3. A Sound Mind in a Sound Body » Стр.53 (14)

Complete the sentences with MUST / MUSTN'T, HAVE TO / DON'T HAVE TO. 1. Volleyball players mustn’t touch the net. 2. Football players mustn’t be very big but they must be fast. 3. Basketball players don’t have to be tall, but it helps! 4. Ice hockey players must wear helmets. 5. In football, goalkeeper doesn’t have to run all the time. 6. Table tennis player have to use a bat.