根据各句子的内容，完成句中已给出了首字母的单词。

1．Last year she visited the Great Wall and bought many s_____________. 

2．My cousin and I went to the a_____________ and watched a shark. 

3．Rose isn’t as o____________ as her best friend, Alice. She is quiet. 

4．Last week she visited the zoo and saw many different kinds of a____________.

5．Thanks for your i_____________ to visit your school next week.