The hosts apologized for（ ）that some of their guests might be vegetarians.
A.正确答案Bhaving not considered
B.not having considered
C.having not been considering
D.not considering
The hosts apologized for（ ）that some of their guests might be vegetarians.
The hosts apologized for（ ）that some of their guests might be vegetarians.
A.正确答案Bhaving not considered
B.not having considered
C.having not been considering
D.not considering
