—We didn't find the Blacks the lecture.
—No one had told him about a lecture the following day.
A. to attend；there to be
B. attending；there being
C. attended；there be
D. attend；there was
网友回答
A. to attend；there to be
(答案→)B. attending；there being
C. attended；there be
D. attend；there was
解析：第一空动词attend为及物动词，表主动，根据感觉动词find所跟复合结构，不可使用to attend，过去分词attended表被动，意义也不成立，可选用attending或attend，但根据句意，此处强调状态，故attending现在分词为最佳选项；第二空介词about后应使用动名词形式there being。