根据句子意思，用括号中所给单词的适当形式填空。
Do you think the story ________(it) is very interesting.
Sandy is a student of _______(wise) and changes his classmates a lot.
Millie is still not used to the _______(hot) in summer here.
You are the most ________(suit) person to work for the old.
This book is of great _________(help) to me.