Question

read the paragraph.
training and caring for a new puppy can be a very demanding task. it takes time, work, and patience to teach the puppy how to behave properly. the puppy will need to learn not to bite, jump on people, or make a mess in the house. you must also take the puppy outdoors frequently to play, exercise, and interact with other dogs and people.
complete the sentence with a word that is close in meaning to demanding.
training and caring for a new puppy can be a very ? task.

Explanation:

The word "demanding" means requiring a lot of time, effort, or attention. Words like "challenging" have a similar meaning as it also implies a task that is not easy and needs significant input.

Answer:

challenging