单选题 He showed great interest in my field of work. He asked me ______ fresh developments.
A. informing him of B. to inform him
C. to keep him informed of D. keeping him informed of

【正确答案】 C

【答案解析】[解析] to keep him informed of fresh developments“把最新进展情况随时告诉他”。keep后面可以跟带现在分词或过去分词的复合宾语。做这样的题时要注意分词与宾语的逻辑关系，要搞清楚宾语是分词的施动者或是受动者；如果宾语是施动者就用现在分词；如果宾语是受动者就用过去分词。