请用下面方框内所给的词或短语完成下列句子，每项只能用一次。

1．A zoo is a ________ where many animals live．

2．Today is my cousin’s ________ birthday．

3．Liu Xiang is very ________ in China．

4．Mike ________ to see his aunt if he is free tomorrow．

5．It’s not polite to ________ others．