-Giving readers a chance to participate makes a blog more interesting.
Explanation:
When you are interacting with your audience you can read their comments and learn what they like, and what they dislike, and take advantage of knowing what they are enjoying, it is also easier to select new topics in the future because you get to know you audience better, and get to give them what they need and want, and what is entertaining and appeling for them.
What are the underlined verbs? Learned, Taught, Helped, With this, you have to put 'Have' in front of the verbs. We (have) Learned Teacher (have) taught us There is no reason to go beyond this, B is the irregular one.
