题目内容：

根据句意，用括号中所给单词的正确形式填空，每空一词。

1.Kate lives on the     (eight) floor of that tall building, two floors above me.

2.When babies learn to stand, they hold on to something to support     (they).

3.Little Tommy left his book at home this morning because of his     (care).

4.In the past, having good manners meant speaking     (polite), holding doors open for others.

5.When Dazhuo Express-way Junction (高速道口) came into use, it became much     (easy)  to travel from our city to Nanjing.