have been to与have gone to的区别 — 英语选择题
题目
Mary isn't at home now — she has ___ to the library to borrow books, and she will be back before dinner. Her brother Tom visited the library this morning, but he has already come back for lunch, so he says he has ___ there twice this week. A. gone; been B. been; gone C. gone; gone D. been; been