单选题 While crossing the mountain area, all the men carried guns lest they ______ by wild animals.
【正确答案】 A
【答案解析】[解析] lest的意思是唯恐,以免,免得。它是连词,所连接的状语从句里常用should或动词原形,lest... should...表示“以免;生怕;唯恐”。