四六级考试

【单选题】 Entering the reading room of the library, ______reading there, preparing for their final exams.
A．a lot of students were
B．Tom found a lot of students
C．a lot of students
D．lot of students were found by Tom

网考网参考答案：B
网考网解析：
本句是关于分词(或者其他非谓语动词一样)逻辑主语的问题。这里是Tom走进图书馆阅览室，所以，只能选B。其他的选项不能提供句子中所缺少的主语。 查看试题解析出处>>