问题
单项选择题
Before he finally sent its copies off to be handed out among members of the committee, he went over it again and made sure that no item of importance was ().
A. checked out
B. crossed out
C. dropped out
D. left out
答案
参考答案：D
解析：
leave out“遗漏”；cross out“划掉，删去”；drop out“退出”，一般不用被动语态；check out“结账后离开”。根据句子意思应该选D。