This is not the dictionary which I .A. referring toB. referredC. referred toD. referred f

问题补充：

This is not the dictionary which I .

A. referring to

B. referred

C. referred to

D. referred for

答案：

A. referring to

B. referred

(答案→)C. referred to

D. referred for

解析：考查动词形式。句意：这不是我查阅的词典。从句缺谓语而referred to为谓语形式故选C