题目内容

补全对话。
Melissa: Look! This looks so interesting. There are dragons and frogs on it.  
Li Lei: Ah, it's a great invention of ancient China.  
Meiissa: Really? When      1     it     2     ?  
LiLei: I think it      3          4     in Han Dynasty(汉朝 ).  
Melissa: What    5   it    6   for?  
LiLei : Guess !  
Melissa:     7     it     8   for holding water?  
Li Lei: No. It   9          10     for testing earthquakes.  
Melissa: Really? But how?  Li Lei: Read this, and you'll know everything.  
Melissa: Wow, it's really amazing. The Chinese are great!
1. was    2.invented    3. was    4.invented    5. was  
6. used   7. Was   8. used   9. was   10. used
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