其实宾语从句中连接代词的用法和特殊疑问代词的用法相同, 疑问代词 主要有 who , whom , whose , what , which , 他们在句中主要是充当 主语, 宾语, 表语, 定语,那么连接代词也是一样的.
eg. What color do you like ?
He asked me what color I liked .
Which class are you in ?
Can you tell me which cass you are in ?
Whose book is it ?
Do you know whose book it is ?