——Excuse me ,could you help me take this chair to my office?——I'm sorry ,( )I can't help you right now.I'm too busy.A and B,but C so D because请选出正确答案并解释.
问题描述：
——Excuse me ,could you help me take this chair to my office?
——I'm sorry ,( )I can't help you right now.I'm too busy.
A and B,but C so D because
请选出正确答案并解释.
答
D，因为前面说i am sorry，表示我很抱歉，应该用because，表示因为。
整个句子的意思是我很对不起，因为我现在不能帮你。我太忙了
答
B,but 根据句意来判断