I have to reschedule the appointment with you since there is a in my arrangement.
A. contract
B. contrast
C. connection
D. conflict
网友回答
A. contract
B. contrast
C. connection
(答案→)D. conflict
解析：词义辨析。 A.合同；婚约 B.对比；差别 C.连接；联系 D.冲突；矛盾。句意：由于在我的安排中有一个冲突，我不得不重新安排和你的约会。故选D。