Complete the sentences with these words. ball / trainers / costume / boots / skis / pitch / goggles / pool / shirt / tracksuit / slope / track / racquet / ski suit. 1. you play tennis on a tennis court. you use a and 2. at the swimming , people wear a and 3. footballers wear a football , shorts and they always play on a football. 4. athletes train on a running . they usually wear a and 5. you have to have and a if you want to go on a ski.