i'm interested in animals ,so i___(spend) every saturday working in an animal hospital

i'm interested in animals ,so i___(spend) every saturday working in an animal hospital
i'm interested in animals ,so i___(spend) every saturday working in an animal hospital

i'm interested in animals ,so i___(spend) every saturday working in an animal hospital
Spend:一般现在时的第一人称；
我对动物很感兴趣,所以每个周六都在动物医院工作；