题目内容：

根据句意和汉语注释，写出单词的正确形式。

1.Would you please tell me the ________________ (总统) names ?

2.What a good time they had____________(讨论)their future plan.

3.Are there any ____________(指示) on how to plant the trees?

4.After running for another hour，he felt even_____________(口渴的)