She had learned English for five years and then she went to London.Đoạn văn39/40She had learned English for five years and then she went to London.She had learned English for five years after she went to London.Before she had went to London, she learned English for five years.She had learned English for five years before she went to London.She learned English for five years before she went to London.Giải thíchĐáp án C