参考修改如下：
I lost my dog Lucky two days ago.Unfortunetly,I still couldn't find her yet.Where was she going?Accroding to my suspicion,I considered that she might be sent to the local police station.Therefore,I decided to ask police and made sure that if they had any info about my dog Lucky.But my little sister suggested me that perhaps Lucky might be on her way home and tried to persuade me staying at home and waitting for Lucky until she coming back automatically.
In the meanwhile,my parents were worried Lucky as well because they both hold a pessimistic perspective with Lucky.
In a word,I really wanted to know where exactly Lucky is and,hopefully,she would come back soon.
希望小女子的回答对LZ有帮助~