38.freely freedom operation operator punishment

37.seed obey operate guide punish sow sowed sown　

36.shade feed blood wood free programme fetch purpose burn fact thickly stranger rule powder.percent　

35.　 pass an exam /fail(in)an exam

34.　 have an exam

33.　 hold an exam

32.　 wash away

31.　 in this way/with this method/by this means

30.　 after

29.　 all