the meaning of prompt in this text would be "to do something under a specific time limit" or "done without delay" so you have to "identify and number all the tasks within the time limit"
hope this helps!
I think the answer would be replace, i'm taking a test with Penn Foster with the same question
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.
