9. What's it made of?

8. How does it work?

7. This is a new way of...

6. This invention can help people...

5. I would try to...

4. It would be difficult to...

3. I would need help to...

2. If I..., I would be able to...

1. I'm sure I would be able to...

20. ____ than 多于；不仪仅；极其

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