I am anxious about what notes he made in the back of his diary things to mend or re­

问题补充：

I am anxious about what notes he made in the back of his diary things to mend or re­place.

A. by

B. in

C. with

D. of

答案：

A. by

B. in

C. with

(答案→)D. of

解析：因为take notes of是习语，意为“记录”。