问题
选择题
As the final examination is coming , the students are busy ____ it.
A． preparing
B． preparing for
C．prepare
D．prepare for
答案
答案：B
考察busy和prepare的用法。Be busy doing，忙着做……，根据题意句子中指的是为……准备，故选B，由于期末考试要到了，学生们都在忙着准备考试。