1. A new phenomena, which is visible at Managua’s major intersections, are waves of vendors and beggars, which include many children and
mob cars at the stoplights. (A) A new phenomena, which is visible at Managua’s major intersections, are waves of vendors and beggars, which include many children and (B) Visible at Managua’s major intersections are waves of vendors and beggars with many children, new phenomena that (C) A new phenomenon visible at Managua’s major intersections
is waves of vendors and beggars, many of them children, who （c） (D) Phenomenally new waves of vendors, beggars, and many children are visible at Managua’s major intersections, which (E) A wave of vendors and beggars, many of whom are children, are visible at Managua’s major intersections, where they are a new phenomenon and
本题选c,可是为什么waves of....前面用is? many of them childern 是什么用法？ | 
