根据句意及首字母提示补全单词。

1.A happy family gives a loving e_______ for children.

2.We work hard to i_______ our ability(能力).

3.Five rings are a s_______ of the Olympic Games.

4.This evening Kangkang will go to the movies in the Haidian T_______.

5.He isn't here now. P_______ he is at home.