68．Make sure there is no d　　　　 , then you can swim in the river．

67．Can you tell me where is the e　　　　 　of the zoo? I can’t go into it．

66．Have you w 　　　　　a letter to your parents these days?

65．The c　　　　 　of the cup is broken．

64．A doctor’s job is to help s　　　　 　people．

63．When we eat cabbages, we eat their s　　　　 　and leaves．

62．The g　　　　 　was not smooth so that he fell over．

61．They h　　　　 　a meeting yesterday．