He burned all the important documents___that they should go into the enemy's hand. A lest B for fear 答案:B 凡是由lest(以免;免得),in case(以防)和 for fear that(生怕,唯恐)引导的目的状语从句中,用“should+动词原形 其谓语部分should可以省略.例如: Keep quiet in case you(should)interrupt him when he is busy.要保持安静,以防打扰他. She is now studying for fear that she(should)fail in English.她现在很勤 奋,生怕英语不及格. You must wake him early lest he(should)be late for school.你务必早点叫 醒他,以免他上学迟到. 但是当有that时,不用lest 而用for fear。因为lest不和that连用,其作用相当于that