-----What are Joe and Jeff doing?
-----Joe is a film and Jeff is .
A. seeing , runing
B. seeing , running
C. sees, runs
D. see, run
网友回答
A. seeing , runing
(答案→)B. seeing , running
C. sees, runs
D. see, run
解析：根据上文的内容，问的内容为现在进行时，回答的是，用进行时表示，而run 的现在分词为running，故选B