✔ 最佳答案
The equestrian events was held yesterday night at Sha Tin. Although they were only the qualification rounds, and no medal was awarded, they still attracted many news reporters to be there, because the founder of Microsoft, Bill Gates, who arrived two days ago, was thought to appear. Although Mr. Gates did not arrive (appear), but the founder of Yahoo - Jerry Yang, was there ! As soon as the reporters saw Mr. Yang, they would obviously want to interview him, but Mr. Yang refused immediately.
You can see clearly from his serious looks when he was recording videos,
OR
You can see clearly from his serious looks in his videos,
that he was observably wanting to watch the competition, without disruption