Elizabeth 2 became queen in 1952. she had been princess before her father king george vi died in 1952. viven leigh played scarlett in the famous hollywood film in 1939. she had not acted in hollywood films before she started to work there in 1939. andre agassi won the wimbledon competition in 1992. he had trained a lot before he won the competition. charles dickens had been a journalist before he wrote his famous book pickwick papers in 1837 and became a famous writer. найти предложения в past perfect и написать их в положительном,отрицательном и вопросительном предложении.