He let me repeat his instructions sure that I understood what was after he went away.
A. to make; to be done
B. making; doing
C. to make; to do
D. making; to do
网友回答
(答案→)A. to make; to be done
B. making; doing
C. to make; to do
D. making; to do
解析：句意：他让我重复他的指导的目的来确保我能理解在他走后什么事被做。第一空是动词不定时作目的状语，第二空what与to do之间是被动关系，又表示将来，故用to be done；故选A。