Soon they the water which the pipe.
A. ran out; ran out of
B. ran out of; ran out of
C. ran out; ran out
D. ran out of; ran out
网友回答
A. ran out; ran out of
(答案→)B. ran out of; ran out of
C. ran out; ran out
D. ran out of; ran out
解析：本题考查动词短语。run out (of)用完，耗尽。run out 为不及物动词短语，run out of 为及物动词短语。这里两空都有名词，故都用ran out of。