【题目】Leaving the car unlocked, as many careless people do in their daily life, is just an open ________ to thieves.
A. appreciation B. invitation
C. motivation D. reception
在线课程【答案】B
【解析】
考查名词词义辨析。句意：就像许多粗心的人在日常生活中那样，车不上锁是对小偷的一个公开的邀请。appreciation欣赏；invitation邀请；motivation动机；reception接待，B项符合语境，故选B。