I have no doubt in my mind they will be glad to see me.A. ifB. whetherC. thatD. about

问题补充：

I have no doubt in my mind they will be glad to see me.

A. if

B. whether

C. that

D. about

答案：

A. if

B. whether

(答案→)C. that

D. about

解析：考查名词性从句。名词doubt前有否定，故关系词用that，故选C。