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题目内容
（南阳师范学院-教育学-大学英语（四））
Mike promised to keep me ______ how our business was going on.
(A) informed
(B) informed of
(C) to be informed
(D) to be informed of
(A) informed
(B) informed of
(C) to be informed
(D) to be informed of
参考答案