【题目】I can't understand ________a decision until it is too late.
A. him to postpone to make
B. his postpone to make
C. him to postpone making
D. his postponing making
在线课程【答案】D
【解析】
考查非谓语动词。
句意：我无法理解为时已晚，他仍迟迟不做决定。understand后跟动名词（短语）作宾语，此处用的是动名词的复合结构；postpone推迟，其后也要跟动名词作宾语，因此D项正确。