问题
选择题
Twenty students want to attend the class that aims to teach________to read fast.(2011·辽宁)
A．what
B．who
C．how
D．why
答案
答案：C
C [考查疑问副词 ＋ to do的用法。句意为“有二十名学生想听旨在提高阅读速度的课程。”fast提示了方式，how ＋ to read fast等同于名词，作teach的宾语。故选C。]