Yesterday night at approximately nine o'clock,a blackout happens at my place.My mom was on the telephone talking with aunt Jun,who lives in California.My dad was standing on a chair trying to change a light bulb when the blackout happened.He almost fell off the chair!And I was working on my homework in my room as usual.I thought that I wouldn't be able to complete my homework and I was really worried.Surprisingly,the electricity came back a few minutes later and I was able to get back to finish my work and hand it in the next morning.第一句happens应该是happened, sorry写错了