1. Let's do some role play. You take the part of A, and you take the part of B. Don, will you start? OK. Good job.Then switch the role. Emily, this time, you should start first.

2. Let's roleplay. Don, play the part of A. Emily, play the part of B. Don, will you start the conversation? Well done. Now change the role. This time, Emily, you should start the talk. Good job. Go back to your seats.

(Would youi check the passages and correct errors? Thank you.)

Everything's fine.

=)

1. Let's do some role play. You take the part of A, and I'll take the part of B. Don, will you start? OK. Good job. Now let's switch roles. This time, I'll be A and you can be B, Emily.

2. Let's roleplay. Don, you'll play the part of A, and Emily, you'll play the part of B. Don, will you start the conversation? Well done. Now let's change roles. This time, Emily, you'll start the talk. Good job. Now you can go back to your seats.

There were a few grammatical errors in the original passages, but I have corrected them for you.