【题目】It was ______ the president's speech that the secretary spent the whole morning at home.
A. to prepare B. preparing
C. prepared D. be prepared
在线课程【答案】B
【解析】试题分析：本题中含有一个强调句型，强调的是句子的宾语preparing the president's speech；在英语中，通常动名词可以在句中做宾语。本句中是一个固定搭配spend some time in doing stt花费时间做某事；句义：秘书花了整个晚上在家里准备的正是总统的演讲。故B正确。