阅读下面短文，从短文后各题所给四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
I went to Australia for summer holiday with my parents last year. I was so excited about the 1.
We did many things there. The first day, we 2 Sydney. We had some 3food for lunch there. After lunch，we went to a big 4 . We saw tigers and koalas. The animals weren't 5 of people.
6that, we had a walk and we 7 at a restaurant. We went back to the 8 to rest at 9: 00 in the evening. I was very 9. But I really 10 myself. I hope to go there again.
