This is the second time that I the same mistake.A. makingB. makeC. have madeD. to make

问题补充：

This is the second time that I the same mistake.

A. making

B. make

C. have made

D. to make

答案：

A. making

B. make

(答案→)C. have made

D. to make

解析：It/This is the+ 序数词+ time +that结构中，that从句中用现在完成时，故选C。