1. 根据句意及汉语提示完成句子

1. （1） There are so many different kinds of （坐便器）in the museum.

3. （2） I make my dream come true by chance this time, and it's really （难以置信的）．

5. （3） With the teacher's help, he has made great (进步) in English.

7. （4） They tried their best to make their work （完美的）.

9. （5） Most of the （德国人）speak German.