问题补充:
The schoolboys and schoolgirls are walking along the street,a small redcap .
A. each of them has
B. they each have
C. every wears
D. each wearing
答案:
A. each of them has
B. they each have
C. every wears
(答案→)D. each wearing
解析:A.B两项结构正确,若选A.B,则必须用and连接或把“,”改为“;”,wearing作状语,表伴随。故选D。