A few looked at him curiously when he suddenly stopped and burst out crying.
A. passers-by
B. passer-bys
C. passers-bys
D. passer-by
网友回答
(答案→)A. passers-by
B. passer-bys
C. passers-bys
D. passer-by
解析：本题考查名词复数。passer-by的复数应在主要名词上加S，故为passers-by。句意：当他突然的停下来大哭起来，一些路人好奇的看着他。