has obviously changed

Would anyone be kind enough to check the following paragraph for me? Thanks!

As time goes by, the food culture has obviously changed. Fast food has replaced eating three meals at home, and McDonald has become indispensable in our life. No matter kids, teenagers or workers, all love the dining in McDonald. At fast food kingdom, the competition is fierce among the fast-food restaurants. Why McDonald be the top in many fast food restaurant, and get “The king of fast food” title? Then I will investigate the factors in McDonald’s success.

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Originally Posted by Ashiuhto

Would anyone be kind enough to check the following paragraph for me? Thanks!

As time goes by, the food culture has obviously changed. Fast food has replaced eating three meals at home, and McDonald's has become indispensable in our life. No matter if they are kids, teenagers or workers, all love the dining in at McDonald's. At fast food kingdom, The competition is fierce among the fast-food restaurants. Why is McDonald's be at the top in many fast food restaurants, and get “The king of fast food” title? Then Next, I will investigate the factors in McDonald’s success.

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If you write "the dining", you are referring to the experience of eating at the restaurant. If you write "dining", you are referring to the actual eating.