问题
Could you tell me _______—- Sorry， I don’t know. I will call you ______.
A:when your brother comes back； when he will come back
B:when your brother will come back； when he comes back
C:when your brother comes back； when he comes back
D:when your brother will come back； when he will come back ;
B:when your brother will come back； when he comes back
C:when your brother comes back； when he comes back
D:when your brother will come back； when he will come back ;
正确答案是：
