This is a dialogue in an English class.
Teacher : Let's role-play with your group. Take a role from the dialogue.
Let's watch the screen carefully and repeat the dialogue.
If your character is shown on the screen, you have to stand up.
Group 1 : (standing up) I can swim.
Group 2 : (standing up) I can play the piano.
Teacher : Good. This time, change your role and repeat the dialogue again.
Should it be "Change your roles" or "Change your role."?
Anyway, what's the difference between two?
Are there any errors in this dialogue? If so, please correct them.
Thank you.
Teacher : Let's role-play with your group. Take a role from the dialogue.
Let's watch the screen carefully and repeat the dialogue.
If your character is shown on the screen, you have to stand up.
Group 1 : (standing up) I can swim.
Group 2 : (standing up) I can play the piano.
Teacher : Good. This time, change your role and repeat the dialogue again.
Should it be "Change your roles" or "Change your role."?
Anyway, what's the difference between two?
Are there any errors in this dialogue? If so, please correct them.
Thank you.