根据句意,填入句子所缺的单词(第一个字母已给出)。5分 (1)Every weekend I climb m_________ (2)I l_________ fall in Canada. (3)Today is Chen Jie’s birthday. John is sending h_________ a card. (4)It’s May. What s_________ is it in Beijing? (5)Autumn is beautiful. I can watch the leaves f_________