This is book I wrote.A. the only ….whichB. a very…thatC. the only…thatD. the just…which

问题补充：

This is book I wrote.

A. the only ….which

B. a very…that

C. the only…that

D. the just…which

答案：

A. the only ….which

B. a very…that

(答案→)C. the only…that

D. the just…which

解析：定语从句中的先行词有the only修饰时，关系代词that不能省略。