68．Can you imagine living in the dark without e　　 　　　　　.

67．You can’t depend on her . She may forget , so she is not r　　 　　　　　.

66．She sent me the present by p　　 　　　　　post .

65．People without i　　 　　　　　had to pay for their own repairs .

64．According to the weather f　 　　　　　　it will rain tomorrow .

63．We are going to make a　　 　　　　　to Hainan during the summer holidays.

62．The plane flew at an a j　　 　　　　　of 3000 feet.

根据下列各句句意及所给的单词的首字母提示，写出该单词的正确形式。

61．Nowadays many children often say that there is a g　　 　　　　gap between them and their

parents.