【题目】It is vital that you _________the next question depending on what the person says while communicating.
A. prepare B. prepare for C. prepared D. must prepare
在线课程【答案】A
【解析】
试题分析：句意： 和别人交流时，依靠他所说的你准备下一个问题是很重要的。本句是一般现在时，prepare准备；prepare for为…做准备；故选A。