1. People thought that corona viruses originated in wuaHan.

⇒ It is thought that corona viruses originated in wuaHan.

2. In spite of having very little money, they are happy.

⇒ Although they have very little money, they are happy.

3. Khanh started playing computer games in 2012.

⇒ Khanh has played computer games since 2012.

4. Mr.Cuong is determined to continue working when he is 65.

⇒ Mr.Cuong has no intention of continuing working when he is 65.

~Good luck~

Có câu nào ko hiểu thì hỏi mình nhé

1. It was thought that corona viruses originated in wuaHan (bị động với động từ think, believe,...)

2. Although they have very little money ,they are happy (Although+a clause=Despite+V-ing/ N)

3. Khanh has played computer games since 2012 

4. Mr.cuong is not determined to stop working when he is 65