Which sentence is right?
问题描述：
Which sentence is right?
A.His father has gone to HongKong twice.
B.Where have you been these days?
C.I don't know what the matter was wrong with him.
D.Kate's brother has joined the army since three months.
为什么？
答
B 是正确的.
Where have you been these days?这些天你去哪儿了?�������Ϊʲô��ģ������Ķ����������£�A Hisfatherhasbeento HongKong twice.��ĸ���ȥ��������Ρ� C.Idon'tknow whatwaswrong withhim. �Ҳ�֪������ô�ˡ�D.Kate'sbrotherhasbeen a mumber ofthearmysince three months ago.���صĵܵܳ�Ϊ�����Ѿ�������ˡ�