根据人教版九年级英语Unit12 I used to be afraid of the dark，用所给单词的适当形式填空。

1. It's even ____     (good) than I thought it would be.

2. And you wouldn't believe how              (quick) my French has improved.

3. I'm very comfortable              (speak)  French  now.

4. My biggest challenge is learning how               (behave) at the dinner table.

5. Another thing is that it is very rude                (say) you're full.

6.I find it difficult                (remember) everything.