We've all heard of Thomas Edison, （ ） invented the electric light and many other things.
（A）the man who
（B）that
（C）which
（D）a man who
I lost a book, （ ） I can't remember now. 选项：
（A）whose title
（B）its title
（C）the title of it
（D）the title of that
The size of the audience, （ ） we had expected, was well over one thousand. 选项：
（A）whom
（B）who
（C）as
（D）that
