at the gym 与 in the gym 哪个答案才是正确的?

at the gym 与 in the gym 哪个答案才是正确的? Play in the gym We’ll meet in the gym at school.对in the gym at school提问 是on the gym还是in the gym? I’m at the gym working out." play ____(on/in)the gym Play in the gym.用中文翻译,急用! They are d______ in the gym She is (exercising) (in the gym). We usually have ( )in the gym class. you work out in the gym go to the gym.