They were thirsty, so they went something to drink.
A. searching for
B. searching for
C. searching
D. in their search of
网友回答
(答案→)A. searching for
B. searching for
C. searching
D. in their search of
解析：
这里是词组辨析题，句意是：他们很渴，所以去找些东西喝。searching for寻找，这里做伴随状语，B、D、选项分别改成in search of /in their search for就对了，search接某地或某人，表示搜查某地或搜某人身。