She teaches English at our school.
-> She is an English teacher.

She goes to an English speaking club every week. She speaks English fluently now.
-> If she didn’t go to the English speaking club every week, she wouldn't speak English fluently now.

The team plays on the left. The team has never won the championship.
-> The team which plays on the left has never won the championship.

I have visited the Stone Forest once before.
-> This is the second time I have visited the Stone Forest.

Duong's sister can speak both Italian and English perfectly.
-> Duong's sister is bilingual.