This is a Phoenix brand bike which wasI bought from Fuyang commercial building in 2017 or 2018, and it cost more than 500 CNY. This is a Phoenix brand bike which I bought from Fuyang commercial building in 2017 or 2018, and it cost more than 500 CNY.

Although I do not ride it all the time, I think it's very helpuseful because I often ride it in spring and autumn. Although I do not ride it all the time, I think it's very useful because I often ride it in spring and autumn.

I didn't expect that it would be stolen by someonesomeone would steal it, because nowadays, people are rich enough to buy a bike, ss. Stealing a bike is really not necessary, but it happened. I didn't expect that someone would steal it, because nowadays, people are rich enough to buy bikes. Stealing a bike is really not necessary, but it happened.

It sounds more natural to split this into 2 sentences and use the active voice in the first sentence.

I once thought that maybe someone would ridetook it in a hurry and that they would return it later, but I am waiting for thated until this afternoon, no expected thing happens. and no one brought it back. I thought that maybe someone took it in a hurry and that they would return it later, but I waited until this afternoon and no one brought it back.

Although I am very helpless, there is still no way.There's nothing I can do about it now. There's nothing I can do about it now.

FI should forget it, and buy another one online instead. I should forget it and buy another one online instead.