提示： It’s···in··· The weather is··· Are wearing ···are having

解题思路： 复习了现在进行时be +doing .学会使用描述天气方面的形容词。
解题过程：
My summer vacation
It’s morning in Beijing .The weather is very sunny ,but a little windy .My parents and I are in the park . We are wearing cool clothes .We are boating in the park .There are many people .Some of them are playing basketball ,some are singing and dancing .We are having a great time .