Question

My daughter and I were walking along the street when we noticed a homeless boy sleeping on cardboard

--> While

Angelina Jolie began taking an interest in charity work. She was filming in Cambodia. 

--> While

Answer 1

My daughter and I were walking along the street when we noticed a homeless boy sleeping on cardboard

--> While my daughter and I were walking along the street, we noticed a homeless boy sleeping on cardboard

Angelina Jolie began taking an interest in charity work. She was filming in Cambodia. 

--> While Angelina Jolie was filming in Cambodia, she began taking an interest in charity work.

 

while: trong khi ai đó đang làm gì