Conversation using the simple past and the past progressive

□Conversation 1
Daniel: Hey, did you see Gabriel this morning?
JJ: Yes, I did. While I was walking to Winning story, I saw him. Why?
Daniel: He had promised to help me with my homework this morning, but he didn't come.
JJ: Ah.. I'm sorry to hear that. I guess something happened to him.

□Conversation 2
Gabriel: Hey, JJ. I left a message on Kakaotalk, but you didn't answer me. What were you doing at that time?
JJ: I'm so sorry. Since I was studying TOEIC with my study partner when I got the message, I couldn't answer it. As you know, it would be rude to send a message to a friend while studying with someone else.
Gabriel: Ah, I get it. I just sent a message to ask if you want to have lunch with me or not.
Jj: Let's have lunch together! I'm starving now.

□Conversation 3
Mom: You're always playing computer games! I think you shouldn't play computer games for a week.
Son: Mom, that's unfair. You said "After doing homework, you can play a game". So, I studied and did my homework at first, and then I started playing a game.
Mom: Okay, Honey! But I want you to turn off the computer now and do something useful to you.
Son: OK, mom.

conversation using the simple past and the past progressive

□Conversation 1
Daniel: Hey, did you see Gabriel this morning?
JJ: Yes, I did. While I was walking to Winning story (not sure what "winning story" is...), I saw him. Why?
Daniel: He had promised to help me with my homework this morning, but he didn't come.
JJ: Ah.. I'm sorry to hear that. I guess something happened to him.

□Conversation 2
Gabriel: Hey, JJ. I left a message on Kakaotalk, but you didn't answer me. What were you doing at that time?
JJ: I'm so sorry. Since I was studying TOEIC with my study partner when I got the message, I couldn't answer it. As you know, it's rude to send a message to a friend while studying with someone.
Gabriel: Ah, I get it. I just sent a message to ask if you wanted to have lunch with me or not.
Jj: Let's have lunch together! I'm starving now.

□Conversation 3
Mom: You're always playing a computer game! I think that you shouldn't play any computer games for a week.
Son: Mom, that's unfair. You said, "After doing homework, you can play a game," so I studied and did my homework at first and then I started to play a game.
Mom: Okay, Honey! But I want you to turn off the computer now and do something that's useful to you.
Son: Okay, Mom.