单选题 3.  It was four days later that she remembered having left her dictionary in the library. ______
【正确答案】 B
【答案解析】 翻译的关键是搞懂以下两个短语的含义:remember doing sth. 记得做过某事(事情已经做了);leave sth. in...意为“把……忘在……”。A项误译为“忘记去做某事(事情未做)”;C项翻译有歧义。