草莓在夏季是当季的，所以那时味道最好。

Strawberries are ___in ___season in the summer, so they taste best then.

当本地番茄当季时，市场里色彩斑斓。

The market is full of colour when local tomatoes are ___in ___season.

过万圣节时，人们常常雕刻南瓜，尤其是在南瓜当季的时候。

For Halloween, people often carve pumpkins, especially when they are ___in ___season.