【题目】At the beginning of a speech, it is very important to grab the audience's attention and make them interested in ______ you have to say.
A.which
B.what
C.that
D.who

【答案】B
【解析】考查宾语从句。句意：在演讲的开始，抓住观众的注意力，让他们对你要说的内容感兴趣是非常重要的。what you have to say是又what引导的宾语从句，what在宾语从句中做say的宾语，故选B项。