an advertisement
An advertisement could be said to represent a persuasive argument inasmuch as it develops a premise or set of premises (more often than not, not very solid or logical, and sometimes even unethical) and reaches a conclusion by which it intends to persuade a certain audience to consume the products or services being advertised.
Answer:
1. Sarah will finish her exams as soon as she will travel to London.
2. We will be able to visit the museum tomorrow.
3. Eating junk food is harmful for our health.
4. (e.g.) I can increase the amount of times that I workout every week.
