We’re advised not to leave the water after using it.A. runB. runningC. to runD. having ru

问题补充：

We’re advised not to leave the water after using it.

A. run

B. running

C. to run

D. having run

答案：

A. run

(答案→)B. running

C. to run

D. having run

解析：句意：我们被建议，在用完水后，不要让水一直流着。这里表示“水一直流着”，故用现在分词，选B。