问题描述：
The policeman ____ the children to cross the street when the traffic lights turned green
The policeman ____the children to cross the street when the traffic lights turned green.
A .agreed
B .signed
C.made
D.let
The policeman ____the children to cross the street when the traffic lights turned green.
A .agreed
B .signed
C.made
D.let
问题解答：
我来补答展开全文阅读