问题 选择题
. The library’s study room is full of students _______ for the exam.
A. busily prepared  
B. busy preparing  
C. busily prepare  
D. are busily preparing
答案

答案:B

考查形容词作状语。短语:忙于做某事be busy doing, busy preparing在题中做后置定语。句意:图书馆的学习教室挤满了为考试忙着准备的学生。故选B。

单项选择题
单项选择题