用适当的介词填空。

1. His great grandmother became ill _____ a kind of disease.

2. What do you think _____ Jane's attitude toward life?

3. She can answer just _____saying "Hello".

4. _____ a disabled person, she is strong enough.

5. —Could you open the door _____ me, please?

    —Sure!

6. Let's think about the good things _____ our life, and we'll feel better.