Mark the letter A, B, C, or D to indicate the sentence that best combines each pair of sentences given.
Angelina Jolie began taking an interest in charity work. She was filming in Cambodia then.
After Angelina Jolie began taking an interest in charity work, she was filming in Cambodia.Angelina Jolie began taking an interest in charity work while she was filming in Cambodia.Before Angelina Jolie was filming in Cambodia, she began to take an interest in charity work.As soon as Angelina Jolie began taking an interest in charity work, she was filming in Cambodia then.Hướng dẫn giải:Dịch: Angelina Jolie bắt đầu quan tâm đến công việc từ thiện khi cô đang quay phim ở Campuchia.
