题目内容：

根据句意、开头字母或英文提示, 写出句中所缺单词，使句子通顺。

1.Please a______ my invitation.

2.]Tom______(can)come to my party because he is ill.

3.Thank you for______(invite)me．

4.We should study very hard on w______,when others have a rest.

5.I'm looking forward to ______(hear) from you soon.