Wpisz przyimek (in, on, at, by, etc.) tam, gdzie jest to konieczne. a/ to go. a swim b/ to take part ..... a competition c/ to work ..... in a gym d/ to take ...... a sport e/ to be ..... the lead f/ to keep ...... with someone g/ to keep ...... running h/ to build ...... muscles i/ to win ... chance ***** j/ to end ..... a draw​