I read a book from 7:30am until 9:30am (simple past) all past simple

The Beauty of Joseon

Joseon Dynasty, which had been about five-hundred years ago, had an extraordinary style. When we see Joseon Baekja, we first think that it is just a pure white earthenware,  but the more we look at it, the more we find its attractiveness and this makes us comfortable. It's very quiet but very beautiful. Let's look at Geunjeongjeon. Even though it is obviously the most magnificent building of Joseon dynasty, it is still moderate. A luxurious gold engraving of that building is hidden on the ceiling. Which means we don't see that in the front door, we can just see it indoors or through a side window. All parts of Geunjeongjeon are in harmony. I really love such beauty not only because I am Korean, but it is also a long-lasting beauty that never goes boring.

”charging line is wrong" he took the wrong charger. we took each other's charger.

overall the articles are being used correctly.

I Dr. XXX from Prince of Whales hospital, the Chinese University of Hong Kong(this part does not make sense. Is he from the prince of whales hospital or the Chinese University of Hong Kong), now serve as a professor and director of the department of Orthopaedics, Faculty of Medicine of the Chinese University of Hong Kong, director of the department of Sports Traumotology in Prince of Wales Hospital in Hong Kong, dean of the Hong Kong College of Orthopaedic Surgeons, and president of the Asian Federation of Sports medicine. use more periods than commas. It will make the passage more easier to understand.

it means that more and more people are becoming interested and are talking about single-sex education. I do not know what single-sex education is.

I can help you