问题
选择题
The library is full of students ____ for the coming exam. [ ]
A. busily prepared
B. busy preparing
C. busily prepare
D. are busy preparing
答案
答案：B
搜题请搜索小程序“爱下问搜题”
The library is full of students ____ for the coming exam. [ ]
A. busily prepared
B. busy preparing
C. busily prepare
D. are busy preparing
答案：B