My grandpa's hobby is fishing.为什么hobby不变成第三人称单数现在时.

My grandpa's hobby is fishing.为什么hobby不变成第三人称单数现在时. my hobby is (go)fishing 改错 My grandpa's hobby is water flowers My grandpa's hobby is farming.的同义句是什么 my grandpa's hobby is growing vegetables 划线提问 my father's hobby is fishing转划线提问 My father's hobby is fishing的同义句 I’m fishing.My hobby is fishing哪个是动名词哪个是现在分词 My father's hobby is fishing.的同意句是什么.五年级练习册 My brother's hobby is taking photos.为什么用taking? My family's hobby ____ is my hobby.