【题目】Some teens cannot be controlled by their parents, _____ the parents try hard to control them.
A.even ifB.as thoughC.now thatD.in case
在线课程【答案】A
【解析】
考查让步状语从句。句意：有些青少年不能被父母控制，即使父母努力控制也控制不住。A. even if即使；B. as though好像；C. now that既然；D. in case万一。此处是选择合适连词连接两个句子，空前：有些青少年不能被父母控制。空后：父母努力控制也控制不住。前后两句是让步关系，even if可引导让步状语从句。故选A项。