作文 You are jenny Wong.You want to keep a pet at home.You are going to write an e-mail to you aunt,

Tell your anut Ann about what pet you are going to keep and the reasons for keeping the pet in abou 90words  英文作文 不怎麼會作 幫幫忙   如果不行或者 給些 句式 ，寫法 教教我 也好~~     ^_^

作文開頭： I have had an idea recently.       ............

 I have had an idea recently.   

请问“have had"是什么语法