87.When your homework____you may go home.A.has done B.is done C.are done D.will be done
问题描述：
87.When your homework____you may go home.A.has done B.is done C.are done D.will be done
答
a
答
B
当你作业被作完时,你可以回家了
这也是一个主将从现的句子,从句用一般现在时,所以B