问题
选择题
He may not even drink water at night, _______ swallowing insects possibly floating on the surface．
A．in case of
B．for fear of
C．for the sake of
D．in line with
答案
B
考查介词短语。In case of 以防，以免；for fear of 为了避免，害怕；for the sake of 为了；in line with 跟……一致，符合。