用所给单词的正确形式填空。
The girl was so_____ (excite) that she can’t say a word.
On weekends, I have to help my mom              (clean) the house.
Many birds can live              (comfortable)  all year round.
My sister feels much              (well) today.
What about             (help) him?（
I        （arrive）at the airport in the afternoon yesterday.