题目内容：

根据汉语意思完成句子。

1.Have you been to Nanjing _______________ (最近)?

2.My English has _______________ (改进) a lot after joining English Corner.

3.The little girl will travel______________ (在国外)to learn more about art.

4.My uncle often goes to Shanghai on _________________ (公事) .

5.Finally we______________ (意识到) the importance of protecting the environment.