Mark the letter A, B, C or D on your answer sheet to indicate the best arrangement of utterances or sentences to make a meaningful exchange or text in each of the following questions from 13 to 17.

1. Alex: That's awesome! I think we'll make a real difference together.
2. Alex: I'm so excited about the upcoming community clean-up event! Have you signed up yet?
3. Emma: Yes, I signed up last week! It feels good to contribute to our neighborhood.