21. Dave: Look! So many people are doing exercises on the sports field. You can see activities like running, jogging, group dance, and workout training here.
Leo: Yeah, that’s why I’m here for jogging. You know, I’ve lost two kilograms in just one month.
Dave: That’s amazing! I don’t really need to lose weight, but I know exercise helps relieve stress.
This is exactly what I need right now.
Leo: ____________ We can be workout buddies and support each other for our different goals.(A) That’s really good to hear.(B) That’s a whole other story.(C) That’s a bit out of left field.(D) That’s easier said than done.