句子改错：
问题描述：
句子改错：
1,Sarah and Lucy are my friends for many years
2,You told me that five times since last week!
答
1,Sarah and Lucy are my friends （for many years） 把are改成 have been
2,You told me that five times （since） last week!把told改成 have told
加“（）”为时态关键词~