根据句意和汉语提示或者是首字母写单词

根据句意和汉语提示或者是首字母写单词
1.Do you know the _______(意图)of this activity?
2.Did he_____(提及)what he did yesterday afternoon?
3.The party's p_______ is to celebrate our Chinese teacher's birthday.
4.The note on the wall of the library p______ a guide for the readers.