He was more or less disappointed at __ more guests.
题目
He was more or less disappointed at __ more guests.
A.not having B.there not having C.not having been D.there not having been
选哪个?为什么?
答案
来的客人不多,他或多或少有些失落/失望.
句式：be disappointed at doing sth
At后面应直接加动词的Ing形式,所以排除B D,C是完成时,不符合句意,排除,最后选A
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