问题
It is_____the pupils do in their spare time_____really______ them to take their place in society as citizens when they grow up.
A:what; that;prepare
B:that; what; prepares
C:what; that;prepares
D:that; what; prepare
B:that; what; prepares
C:what; that;prepares
D:that; what; prepare
正确答案是：
