單選題
The hosts apologized for ______ that some of their guests might be vegetarians.
A. having not considered
B. not having considered
C. having not been considering
D. not considering
答案：B
無(wú)。
編輯推薦：
2013年9月自考英語(yǔ)考試每日一練
（責(zé)任編輯：lqh）
