Past continous vs simple past

A: how did you break were you breaking( did you break, were you breaking ) your arm?
B. It's a crazy story! Ramon and I were riding rode( were riding, rode ) our bikes in the park when a cat ran was running( ran, was running ) out in front of me. i was going went( was going, went ) pretty fast, so when I tried was trying( tried, was trying ) to stop, I went was going( went, was going ) off the road and fell was falling( fell, was falling ).

A: You'll never guess what happened was happening( happened, was happening ) to me this morning!
B: What?
A: Well, I was brushing brushed( was brushing, brushed ) my teeth when suddenly the water went was going( went, was going ) off. I had toothpste all over my mouth, and I couldn't wash it out.
B: So what did you do?
A: Fortunately, I had was having( had, was having ) a big bottle of water in the refrigerator, so I used was using( used, was using ) that water to rinse my mouth.

A: Guess what happened to me last night! As I was getting got( was getting, got ) into bed, I heard was hearing( heard, was hearing ) a loud noise like a gunshot in the street. Then the phone rang was ringing( rang, was ringing ).
B: Who was it?
A: It was Mariana. She always calls me late at night, but this time she had a reason. she was driving drove( was driving, drove ) right past my apartment when she got was getting( got, was getting ) a flat tire. It was very late, so while we were changing changed( were changing, changed ) the tire, I invited was inviting( invited, was inviting ) her to spend the night.