1. 单词拼写(根据中文提示拼写单词)。

1. （1） It took a long  (时期) of time to build the Great Wall in China's history.

3. （2） The  (甜的) food is bad for your teeth.

5. （3） At present, transport  (变得) better and better.

7. （4） I'm often  (兴奋的) when I am watching football matches.

9. （5） If you  (失败) for the first time, you will have a second chance to do it again.