单选题 People won't go out after dark because they are afraid of ______.
A. attacking B. being attacked C. having been attacked D. attacked

【正确答案】 B
【答案解析】[解析] be afraid of doing sth.表示“害怕……”。在这里attack表示的是被动，所以用被动结构，应选B。
[译文] 人们因为怕被袭击而不会在晚上出门。