根据所给提示完成句子,每空一词。

76. He plays football every day. (改为一般疑问句）

______ he ______ football every day?

77. Parents always look forward to hearing from their children. (改成同义句）

Parents always hope their children______  ______ them.

78.随着时间的流逝，他忘记了那些不愉快的事情。

As time ________ ________， he forgot those unpleasant things.

79. 今日事，今日毕(不要把今天的事推迟到明天)。

Never ________ ________ till tomorrow what you can do today

80. 换句话说，没有什么是偶然发生的。

In other words, nothing is there_________ __________.