Susan( )knew that she had to work more diligently to be admitted into the masters program.
A、impulsively
B、instinctively
C、arbitrarily
D、simultaneous
【正确答案】:B
【题目解析】:本题考查副词辨析。impulsively:冲动地;instinctively:本能地,凭直觉地;arbitrarily:任意地,随意地;simultaneous:同时的,同步的。句意:苏珊本能地知道,她必须更加努力地学习才能进入硕士课程。故B选项符合题意。