根据句意,填入句子所缺的单词（第一个字母已给出）.

根据句意,填入句子所缺的单词（第一个字母已给出）.
Today is Chen Jie's birthday.John is sending h_________ a card.
It's May.What s_________ is it in Beijing?
Autumn is beautiful.I can watch the leaves f_________.