brown cannonballs came whizzing through the air, smacked against the lacquered floor of the gym, passed by a face of a flank, and one by one each girl got hit and so would sit out on the sidelines.
이 문장 질문이요.............. passed에 passing을 넣으면 안되나요 ???????? 마찬가지로 smacked에 smacking을 안 되나요 ???? 왜 수동을 써야 되는지 모르겠어요 ㅜㅜㅜㅜㅜㅜㅜㅜㅜㅜㅜ