企源知识库

As our firm is fully occupied with orders at present, we regret having to _______ your order.
A、refuse
B、reject
C、decline
D、return
【正确答案】：C
【题目解析】：decline谢绝，婉拒句意：由于我公司目前订单已满，很抱歉，我们不得不谢绝你方订单。