从方框中选出合适的单词补全下列短文，每词限用一次。
spring winter autumn summer four |
Beijing is a nice place．There are ____seasons in a year．In ____， It's warm and sunny．In ____， it's hot. In ____，it's always cool and windy. In ____，it's cold． I like cool days and bright sunshine．So I like Beijing's autumn best．
